- filenamename of radial power profile .txt file (should be a single column) [UnitLess].
C++ Type:std::string
Controllable:No
Description:name of radial power profile .txt file (should be a single column) [UnitLess].
- powerThe postprocessor or Real to use for the total power of the subassembly [W]
C++ Type:PostprocessorName
Unit:(no unit assumed)
Controllable:No
Description:The postprocessor or Real to use for the total power of the subassembly [W]
- variableThe variable this initial condition is supposed to provide values for.
C++ Type:VariableName
Unit:(no unit assumed)
Controllable:No
Description:The variable this initial condition is supposed to provide values for.
SCMQuadPowerIC
Computes axial heat rate (W/m) that goes into the subchannel cells or is assigned to the fuel pins, in a square lattice arrangement
Overview
This IC assigns the axial heat rate ("variable" = q_prime) on the subchannels or pins in the case of a problem with subchannels/pins in a square lattice arrangement. The user must provide the total power of the subassembly "power", the axial shape of the power profile and the radial power distribution (power per pin). The axial power profile is given as a function over the -z direction, which integral over the length of the heated portion of the pin, is equal to the length of the heated portion of the pin. The radial power distribution is given as a column of numbers in a .txt file "filename" that has as many entries as the number of pins.
If the first entry is 1.0, that means that the pin with index 0 is at 100% power. If the 5th entry has a value of 0.0 that means that pin with index 4 has 0% power, etc. The pin and subchannel indexes are presented in user notes page.
A pin with 100% power has a value of power which is equal to the total power of the subassembly divided with the total number of heated pins (if a pin has zero power it doesn't count in that number).
The total power of pin with index 6 is calculated as the product of the 100% pin power, times the value on the 7th line of the radial power distribution .txt file. Hence the user should pay attention that the sum of entries on the radial power distribution file should be equal to the number of heated pins.
The axial heat rate at a specific height is the product of the total power of the pin, times the value of the axial power profile function, at that height.
Caveat
If the user has created a mesh for the pins, the axial heat rate will be assigned to the nodes of the pin mesh. If the user hasn't created a pin mesh the appropriate heat rate will be assigned to the nodes of the subchannel mesh.
Input Parameters
- axial_heat_rate1.0user provided normalized function of axial heat rate [Unitless]. The integral over pin heated length should equal the heated length
Default:1.0
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:user provided normalized function of axial heat rate [Unitless]. The integral over pin heated length should equal the heated length
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
- stateCURRENTThis parameter is used to set old state solutions at the start of simulation. If specifying multiple states at the start of simulation, use one IC object for each state being specified. The states are CURRENT=0 OLD=1 OLDER=2. States older than 2 are not currently supported. When the user only specifies current state, the solution is copied to the old and older states, as expected. This functionality is mainly used for dynamic simulations with explicit time integration schemes, where old solution states are used in the velocity and acceleration approximations.
Default:CURRENT
C++ Type:MooseEnum
Options:CURRENT, OLD, OLDER
Controllable:No
Description:This parameter is used to set old state solutions at the start of simulation. If specifying multiple states at the start of simulation, use one IC object for each state being specified. The states are CURRENT=0 OLD=1 OLDER=2. States older than 2 are not currently supported. When the user only specifies current state, the solution is copied to the old and older states, as expected. This functionality is mainly used for dynamic simulations with explicit time integration schemes, where old solution states are used in the velocity and acceleration approximations.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:No
Description:Set the enabled status of the MooseObject.
- ignore_uo_dependencyFalseWhen set to true, a UserObject retrieved by this IC will not be executed before the this IC
Default:False
C++ Type:bool
Controllable:No
Description:When set to true, a UserObject retrieved by this IC will not be executed before the this IC
Advanced Parameters
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Material Property Retrieval Parameters
Input Files
- (modules/subchannel/test/tests/problems/psbt/psbt_implicit.i)
- (modules/subchannel/validation/psbt/psbt_null_transient/psbt_ss.i)
- (modules/subchannel/examples/heating_test/3X3_channel.i)
- (modules/subchannel/examples/mesh_generator/psbt_mesh_generator_test.i)
- (modules/subchannel/validation/psbt/psbt_null_transient/psbt_transient.i)
- (modules/subchannel/test/tests/problems/psbt/psbt_explicit_staggered.i)
- (modules/subchannel/test/tests/restart/transient.i)
- (modules/subchannel/test/tests/ics/quad_power/test.i)
- (modules/subchannel/test/tests/problems/psbt/psbt_full_monolithic_staggered.i)
- (modules/subchannel/validation/Blockage/PNNL_7x7/7X7blockage70.i)
- (modules/subchannel/test/tests/restart/steady.i)
- (modules/subchannel/validation/PNNL_12_pin/steady_state/2X6_ss.i)
- (modules/subchannel/test/tests/problems/psbt/psbt_explicit.i)
- (modules/subchannel/test/tests/problems/psbt/psbt_full_monolithic.i)
- (modules/subchannel/test/tests/problems/coupling/main.i)
- (modules/subchannel/test/tests/problems/psbt/psbt_monolithic.i)
- (modules/subchannel/validation/PNNL_12_pin/transient/2X6_transient.i)
- (modules/subchannel/examples/coupling/thermo_mech/quad/one_pin_problem.i)
- (modules/subchannel/validation/Blockage/PNNL_7x7/7X7blockage90.i)
- (modules/subchannel/validation/psbt/psbt_ss/psbt.i)
variable
C++ Type:VariableName
Unit:(no unit assumed)
Controllable:No
Description:The variable this initial condition is supposed to provide values for.
power
C++ Type:PostprocessorName
Unit:(no unit assumed)
Controllable:No
Description:The postprocessor or Real to use for the total power of the subassembly [W]
filename
C++ Type:std::string
Controllable:No
Description:name of radial power profile .txt file (should be a single column) [UnitLess].
(modules/subchannel/test/tests/problems/psbt/psbt_implicit.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
implicit = true
segregated = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/validation/psbt/psbt_null_transient/psbt_ss.i)
# This is an input file based on M. Avramova et. all 2012,
# OECD/NRC Benchmark Based on NUPEC PWR
# Sub-channel and Bundle Tests (PSBT). Volume III: Departure from Nucleate Boiling
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 50
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095
heated_length = 3.658
spacer_z = '0.0 0.229 0.457 0.686 0.914 1.143 1.372 1.600 1.829 2.057 2.286 2.515 2.743 2.972 3.200 3.429'
spacer_k = '0.7 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.0
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 3.44e6 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
checkpoint = true
[Temp_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "Temp_Out.txt"
height = 3.658
[]
[mdot_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_Out.txt"
height = 3.658
[]
[mdot_In_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_In.txt"
height = 0.0
[]
[]
[Executioner]
type = Steady
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
[Transfers]
[xfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu q_prime'
[]
[]
(modules/subchannel/examples/heating_test/3X3_channel.i)
mass_flux_in = 3500 # kg /sec m2
T_in = 297.039 # K
P_out = 101325 # Pa
pitch = 0.0126
unheated_length_entry = 2.5
heated_length = 5.0
unheated_length_exit = 2.5
n_cells = 20
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 3
ny = 3
n_cells = '${n_cells}'
pitch = '${pitch}'
pin_diameter = 0.00950
gap = 0.00095
unheated_length_entry = '${unheated_length_entry}'
heated_length = '${heated_length}'
unheated_length_exit = '${unheated_length_exit}'
spacer_z ='0.0'
spacer_k ='0.0'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.0
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 10000.0 # W
filename = "power_profile.txt"
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[h_3]
type = QuadSubChannelNormalSliceValues
variable = h
execute_on = final
file_base = "h_3.txt"
height = 10.0
[]
[h_2]
type = QuadSubChannelNormalSliceValues
variable = h
execute_on = final
file_base = "h_2.txt"
height = 7.5
[]
[h_1]
type = QuadSubChannelNormalSliceValues
variable = h
execute_on = final
file_base = "h_1.txt"
height = 2.5
[]
[h_0]
type = QuadSubChannelNormalSliceValues
variable = h
execute_on = final
file_base = "h_0.txt"
height = 0.0
[]
[mdot_3]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_3.txt"
height = 10.0
[]
[mdot_2]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_2.txt"
height = 7.5
[]
[mdot_1]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_1.txt"
height = 2.5
[]
[mdot_0]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_0.txt"
height = 0.0
[]
[]
[Executioner]
type = Steady
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
[Transfers]
[xfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu q_prime S w_perim'
[]
[]
(modules/subchannel/examples/mesh_generator/psbt_mesh_generator_test.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.0 / 3600.}'
P_out = 4.923e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 20
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095
heated_length = 1.00
spacer_z = '0.5'
spacer_k = '0.5'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 20
pitch = 0.0126
heated_length = 1.00
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[Tpin]
block = fuel_pins
[]
[Dpin]
block = fuel_pins
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[q_prime]
block = sub_channel
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.08
CT = 2.6
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.00e6 # W
filename = "power_profile.txt" #
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Tpin_ic]
type = ConstantIC
variable = Tpin
value = 0.0
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = 0.00950
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
checkpoint = false
[Temp_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "Temp_Out.txt"
height = 3.658
[]
[mdot_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_Out.txt"
height = 3.658
[]
[mdot_In_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_In.txt"
height = 0.0
[]
[]
[Executioner]
type = Steady
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
[Transfers]
[xfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu q_prime S'
[]
[]
(modules/subchannel/validation/psbt/psbt_null_transient/psbt_transient.i)
# This is an input file based on M. Avramova et al. 2012,
# OECD/NRC Benchmark Based on NUPEC PWR
# Sub-channel and Bundle Tests (PSBT). Volume III: Departure from Nucleate Boiling
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 50
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095
heated_length = 3.658
spacer_z = '0.0 0.229 0.457 0.686 0.914 1.143 1.372 1.600 1.829 2.057 2.286 2.515 2.743 2.972 3.200 3.429'
spacer_k = '0.7 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4'
[]
[]
[UserObjects]
[steady_sln]
type = SolutionUserObject
mesh = psbt_ss_out.e
timestep = LATEST
system_variables = 'mdot SumWij P DP h T rho mu S w_perim q_prime'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.0
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
restart_file_base = psbt_SS_out_cp/LATEST
skip_additional_restart_data = true
[]
[Functions]
[mdot_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = mdot
[]
[P_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = P
[]
[DP_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = DP
[]
[h_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = h
[]
[T_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = T
[]
[rho_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = rho
[]
[Mu_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = mu
[]
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 3.44e6 # W
filename = "power_profile.txt"
[]
[T_ic]
type = FunctionIC
variable = T
function = T_ic_fn
[]
[P_ic]
type = FunctionIC
variable = P
function = P_ic_fn
[]
[DP_ic]
type = FunctionIC
variable = DP
function = DP_ic_fn
[]
[Viscosity_ic]
type = FunctionIC
variable = mu
function = Mu_ic_fn
[]
[rho_ic]
type = FunctionIC
variable = rho
function = rho_ic_fn
[]
[h_ic]
type = FunctionIC
variable = h
function = h_ic_fn
[]
[mdot_ic]
type = FunctionIC
variable = mdot
function = mdot_ic_fn
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[Temp_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = TIMESTEP_END
file_base = "Temp_Out.txt"
height = 3.658
[]
[mdot_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = TIMESTEP_END
file_base = "mdot_Out.txt"
height = 3.658
[]
[mdot_In_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = TIMESTEP_END
file_base = "mdot_In.txt"
height = 0.0
[]
[]
[Executioner]
type = Transient
start_time = 0.0
end_time = 0.2
dt = 0.1
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
[Transfers]
[xfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu q_prime S'
[]
[]
(modules/subchannel/test/tests/problems/psbt/psbt_explicit_staggered.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
staggered_pressure = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/test/tests/restart/transient.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 3
ny = 3
n_cells = 10
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1
spacer_z = '0.0'
spacer_k = '0.0'
[]
[]
[UserObjects]
[steady_sln]
type = SolutionUserObject
mesh = steady_out.e
timestep = LATEST
system_variables = 'mdot SumWij P DP h T Tpin rho mu S w_perim q_prime'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 1.8
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
restart_file_base = steady_out_cp/LATEST
skip_additional_restart_data = true
allow_initial_conditions_with_restart = true
[]
[Functions]
[mdot_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = mdot
[]
[P_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = P
[]
[DP_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = DP
[]
[h_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = h
[]
[T_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = T
[]
[rho_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = rho
[]
[mu_ic_fn]
type = SolutionFunction
solution = steady_sln
from_variable = mu
[]
[]
[ICs]
[S_ic]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_ic]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_ic]
type = SCMQuadPowerIC
variable = q_prime
power = 1e6
filename = "power_profile.txt"
[]
[T_ic]
type = FunctionIC
variable = T
function = T_ic_fn
[]
[P_ic]
type = FunctionIC
variable = P
function = P_ic_fn
[]
[DP_ic]
type = FunctionIC
variable = DP
function = DP_ic_fn
[]
[viscosity_ic]
type = FunctionIC
variable = mu
function = mu_ic_fn
[]
[rho_ic]
type = FunctionIC
variable = rho
function = rho_ic_fn
[]
[h_ic]
type = FunctionIC
variable = h
function = h_ic_fn
[]
[mdot_ic]
type = FunctionIC
variable = mdot
function = mdot_ic_fn
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[]
[Executioner]
type = Transient
start_time = 0.0
end_time = 0.2
dt = 0.1
[]
(modules/subchannel/test/tests/ics/quad_power/test.i)
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 3
ny = 3
n_cells = 10
pitch = 0.25
pin_diameter = 0.125
gap = 0.1
heated_length = 1
spacer_k = '0.0'
spacer_z = '0'
[]
[]
[Variables]
[q_prime]
[]
[]
[ICs]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 3.44e6 # W
filename = "power_profile.txt" #type in name of file that describes power profile
[]
[]
[Problem]
solve = false
[]
[Executioner]
type = Steady
[]
[Outputs]
exodus = true
[]
(modules/subchannel/test/tests/problems/psbt/psbt_full_monolithic_staggered.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
implicit = true
segregated = false
monolithic_thermal = true
staggered_pressure = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/validation/Blockage/PNNL_7x7/7X7blockage70.i)
T_in = 302.594
mass_flux_in = 1730.0950134985335
P_out = 101325 # Pa
# Creer et. al 1976
# Blockage is modeled with area reduction and form loss coefficient distributed on the
# affected subchannels
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 8
ny = 8
n_cells = 36
pitch = 0.0136906
Kij = 0.5
pin_diameter = 0.0099568
gap = 0.0036957
heated_length = 1.4224
z_blockage = '0.60325 0.67945'
index_blockage = '18 19 20 21 26 27 28 29 34 35 36 37 42 43 44 45'
reduction_blockage = '0.83 0.65 0.65 0.83 0.65 0.30 0.30 0.65 0.65 0.30 0.30 0.65 0.83 0.65 0.65 0.83'
k_blockage = '0.0 0.0 0.0 0.0 0.0 1 1 0.0 0.0 1 1 0.0 0.0 0.0 0.0 0.0'
spacer_z = '0.3683 1.3843'
spacer_k = '1.14 1.14'
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.06
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = false
P_out = ${P_out}
implicit = true
segregated = false
staggered_pressure = false
monolithic_thermal = false
interpolation_scheme = 'upwind'
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 0.0 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[]
[Executioner]
type = Steady
[]
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "detailedMesh.i"
execute_on = "final"
[]
[]
[Transfers]
###### Transfers to the detailedMesh at the end of the coupled simulations
[subchannel_transfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu S'
[]
[]
(modules/subchannel/test/tests/restart/steady.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 3
ny = 3
n_cells = 10
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1
spacer_z = '0.0'
spacer_k = '0.0'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 1.8
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
[]
[ICs]
[S_ic]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_ic]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_ic]
type = SCMQuadPowerIC
variable = q_prime
power = 1e6
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
checkpoint = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/validation/PNNL_12_pin/steady_state/2X6_ss.i)
[GlobalParams]
######## Geometry #
nx = 7
ny = 3
n_cells = 48
n_blocks = 1
pitch = 0.014605
pin_diameter = 0.012065
gap = 0.0015875
heated_length = 1.2192
spacer_z = '0.0'
spacer_k = '0.0'
[]
######## BC's #################
T_in = 297.039 # K
P_out = 101325 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[Tpin]
block = fuel_pins
[]
[Dpin]
block = fuel_pins
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[q_prime]
block = fuel_pins
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
beta = 0.006
CT = 2.6
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
implicit = true
segregated = false
monolithic_thermal = false
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 5460 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = 0.012065
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = 131.43435930715006
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
csv = true
[mdot_in_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_in.txt"
height = 0.0
[]
[rho_in_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = rho
execute_on = final
file_base = "rho_in.txt"
height = 0.0
[]
[mdot_out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_out.txt"
height = 1.2192
[]
[rho_out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = rho
execute_on = final
file_base = "rho_out.txt"
height = 1.2192
[]
[mdot_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_075.txt"
height = 0.9144
[]
[T_in_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "T_in.txt"
height = 0.0
[]
[T_out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "T_out.txt"
height = 1.2192
[]
[]
[Postprocessors]
[mdot7]
type = SubChannelPointValue
variable = mdot
index = 7
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot8]
type = SubChannelPointValue
variable = mdot
index = 8
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot9]
type = SubChannelPointValue
variable = mdot
index = 9
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot10]
type = SubChannelPointValue
variable = mdot
index = 10
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot11]
type = SubChannelPointValue
variable = mdot
index = 11
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot12]
type = SubChannelPointValue
variable = mdot
index = 12
execute_on = 'initial timestep_end'
height = 0.9144
[]
[mdot13]
type = SubChannelPointValue
variable = mdot
index = 13
execute_on = 'initial timestep_end'
height = 0.9144
[]
[]
[Executioner]
type = Steady
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
###### Transfers to the detailedMesh at the end of the coupled simulations
[Transfers]
[subchannel_transfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu S'
[]
[pin_transfer]
type = SCMPinSolutionTransfer
to_multi_app = viz
variable = 'Tpin q_prime'
[]
[]
(modules/subchannel/test/tests/problems/psbt/psbt_explicit.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/test/tests/problems/psbt/psbt_full_monolithic.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
implicit = true
segregated = false
monolithic_thermal = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/test/tests/problems/coupling/main.i)
T_in = 297.039 # K
P_out = 101325 # Pa
heated_length = 1.0
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 2
ny = 2
n_cells = 10
pitch = 0.014605
pin_diameter = 0.012065
gap = 0.0015875
heated_length = ${heated_length}
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 2
ny = 2
n_cells = 10
pitch = 0.014605
heated_length = ${heated_length}
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[Tpin]
block = fuel_pins
[]
[Dpin]
block = fuel_pins
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[q_prime]
block = fuel_pins
[]
[displacement]
block = sub_channel
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[Functions]
[axial_heat_rate]
type = ParsedFunction
expression = '(pi/2)*sin(pi*z/L)'
symbol_names = 'L'
symbol_values = '${heated_length}'
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
n_blocks = 1
fp = water
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1000 # W
filename = "power_profile.txt"
axial_heat_rate = axial_heat_rate
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = 0.012065
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = 131.43435930715006
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[]
[Executioner]
type = Steady
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
fixed_point_max_its = 30
fixed_point_min_its = 2
fixed_point_rel_tol = 1e-6
[]
################################################################################
# A multiapp that transfers data to heat conduction simulations
################################################################################
[MultiApps] # I have as many multiapps as pins
[sub]
type = FullSolveMultiApp
input_files = sub.i # seperate file for multiapps due to radial power profile
execute_on = 'timestep_end'
positions = '0 0 0 '
bounding_box_padding = '0 0 0.01'
[]
[viz]
type = FullSolveMultiApp
input_files = '3d.i'
execute_on = 'timestep_end'
[]
[]
[Transfers]
[Tpin] # send pin surface temperature to heat conduction,
type = MultiAppGeneralFieldNearestLocationTransfer
to_multi_app = sub
variable = Pin_surface_temperature
source_variable = Tpin
execute_on = 'timestep_end'
[]
[from_sub] # send heat flux from heat conduction to subchannel
type = MultiAppGeneralFieldNearestLocationTransfer
from_multi_app = sub
variable = q_prime
source_variable = q_prime
from_boundaries = right
execute_on = 'timestep_end'
[]
[subchannel_transfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu S'
execute_on = 'timestep_end'
[]
[pin_transfer]
type = SCMPinSolutionTransfer
to_multi_app = viz
variable = 'Tpin q_prime Dpin'
execute_on = 'timestep_end'
[]
[]
(modules/subchannel/test/tests/problems/psbt/psbt_monolithic.i)
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
pin_diameter = 0.00950
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
pin_diameter = ${pin_diameter}
gap = 0.00095 # the half gap between sub-channel assemblies
heated_length = 1.0
spacer_z = '0.0'
spacer_k = '0.0'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 10
pitch = 0.0126
heated_length = 1.0
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
implicit = true
segregated = false
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 1.0e6 # W
filename = "power_profile.txt" #type in name of file that describes radial power profile
block = fuel_pins
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = ${pin_diameter}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
block = sub_channel
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = report_mass_flux_inlet
execute_on = 'timestep_begin'
block = sub_channel
[]
[]
[Postprocessors]
[report_mass_flux_inlet]
type = Receiver
default = ${mass_flux_in}
[]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 1
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 1
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 1
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 1
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 1
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 1
[]
[]
[Outputs]
csv = true
[]
[Executioner]
type = Steady
[]
(modules/subchannel/validation/PNNL_12_pin/transient/2X6_transient.i)
T_in = 297.039 # K
P_out = 101325 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 7
ny = 3
n_cells = 60
pitch = 0.014605
pin_diameter = 0.012065
gap = 0.0015875
unheated_length_entry = 0.3048
heated_length = 1.2192
spacer_z = '0.0'
spacer_k = '0.0'
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
P_tol = 1e-6
T_tol = 1e-6
compute_density = true
compute_viscosity = true
compute_power = false
P_out = ${P_out}
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 0.0 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.012101767481985
[]
[]
[Functions]
[mass_flux]
type = PiecewiseLinear
xy_data = '
5.0 122.2645
10.0 42.7926'
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = mass_flux_in
execute_on = 'timestep_begin'
[]
[]
[Postprocessors]
[mass_flux_in]
type = FunctionValuePostprocessor
function = mass_flux
execute_on = 'initial timestep_end'
[]
[mdot]
type = SubChannelPointValue
variable = mdot
index = 4
execute_on = 'initial timestep_end'
height = 0.4953
[]
[mdot2]
type = SubChannelPointValue
variable = mdot
index = 4
execute_on = 'initial timestep_end'
height = 0.0
[]
[]
[Outputs]
exodus = true
csv = true
[]
[Executioner]
type = Transient
nl_rel_tol = 0.9
l_tol = 0.9
start_time = 0.0
end_time = 10
dt = 1.0
[]
################################################################################
# A multiapp that projects data to a detailed mesh
################################################################################
[MultiApps]
[viz]
type = TransientMultiApp
input_files = "3d.i"
execute_on = "timestep_end"
[]
[]
[Transfers]
[xfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu q_prime S'
[]
[]
(modules/subchannel/examples/coupling/thermo_mech/quad/one_pin_problem.i)
######## BC's #################
T_in = 359.15
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = '${fparse 1e+6 * 17.00 / 3600.}'
P_out = 4.923e6 # Pa
heated_length = 1.0
######## Geometry #
[GlobalParams]
nx = 2
ny = 2
n_cells = 25
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095
heated_length = ${heated_length}
spacer_z = '0.0'
spacer_k = '0.0'
power = 100000.0 # W
[]
[QuadSubChannelMesh]
[subchannel]
type = SCMQuadSubChannelMeshGenerator
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = subchannel
[]
[]
[Functions]
[axial_heat_rate]
type = ParsedFunction
expression = '(pi/2)*sin(pi*z/L)'
symbol_names = 'L'
symbol_values = '${heated_length}'
[]
[]
[AuxVariables]
[mdot]
block = subchannel
[]
[SumWij]
block = subchannel
[]
[P]
block = subchannel
[]
[DP]
block = subchannel
[]
[h]
block = subchannel
[]
[T]
block = subchannel
[]
[rho]
block = subchannel
[]
[mu]
block = subchannel
[]
[S]
block = subchannel
[]
[w_perim]
block = subchannel
[]
[q_prime]
block = fuel_pins
[]
[Tpin]
block = fuel_pins
[]
[Dpin]
block = fuel_pins
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
verbose_subchannel = true
deformation = true
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
filename = "power_profile.txt"
axial_heat_rate = axial_heat_rate
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = 0.00950
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[Temp_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "Temp_Out.txt"
height = 1.0
[]
[mdot_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_Out.txt"
height = 1.0
[]
[mdot_In_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_In.txt"
height = 0.0
[]
[]
[Executioner]
type = Steady
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
fixed_point_max_its = 8
fixed_point_min_its = 6
fixed_point_rel_tol = 1e-6
[]
################################################################################
[MultiApps]
################################################################################
# Couple to Thermo-Mechanical Pin model (uses kernels available in MOOSE)
################################################################################
[sub]
type = FullSolveMultiApp
input_files = one_pin_problem_sub.i
execute_on = 'timestep_end'
positions = '0 0 0 '
output_in_position = true
bounding_box_padding = '0 0 0.01'
[]
################################################################################
# A multiapp that projects the solution to a detailed mesh for visualization purposes
################################################################################
[viz]
type = FullSolveMultiApp
input_files = '3d.i'
execute_on = 'FINAL'
[]
[]
[Transfers]
[Tpin] # send pin surface temperature to pin model,
type = MultiAppGeneralFieldNearestLocationTransfer
to_multi_app = sub
variable = Pin_surface_temperature
source_variable = Tpin
execute_on = 'timestep_end'
greedy_search = true
[]
[diameter] # send diameter information from pin model to subchannel
type = MultiAppGeneralFieldNearestLocationTransfer
from_multi_app = sub
variable = Dpin
source_variable = pin_diameter_deformed
from_boundaries = right
execute_on = 'timestep_end'
greedy_search = true
[]
[q_prime] # send heat flux from pin model to subchannel
type = MultiAppGeneralFieldNearestLocationTransfer
from_multi_app = sub
variable = q_prime
source_variable = q_prime
from_boundaries = right
execute_on = 'timestep_end'
greedy_search = true
[]
[subchannel_transfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu S w_perim'
[]
[pin_transfer]
type = SCMPinSolutionTransfer
to_multi_app = viz
variable = 'Tpin Dpin q_prime'
[]
[]
(modules/subchannel/validation/Blockage/PNNL_7x7/7X7blockage90.i)
T_in = 302.594
mass_flux_in = 1730.0950134985335
P_out = 101325 # Pa
# Creer et. al 1976
# Blockage is modeled with area reduction and form loss coefficient distributed on the
# affected subchannels
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 8
ny = 8
n_cells = 84
pitch = 0.0136906
Kij = 0.5
pin_diameter = 0.0099568
gap = 0.0036957
heated_length = 1.4224
z_blockage = '0.60325 0.67945'
index_blockage = '18 19 20 21 26 27 28 29 34 35 36 37 42 43 44 45'
reduction_blockage = '0.78 0.55 0.55 0.78 0.55 0.10 0.10 0.55 0.55 0.10 0.10 0.55 0.78 0.55 0.55 0.78'
k_blockage = '0.0 0.0 0.0 0.0 0.0 0.9 0.9 0.0 0.0 0.9 0.9 0.0 0.0 0.0 0.0 0.0'
spacer_z = '0.4064 1.4224'
spacer_k = '1.14 1.14'
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.006
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = false
P_out = ${P_out}
implicit = true
segregated = false
staggered_pressure = false
monolithic_thermal = false
interpolation_scheme = central_difference
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 0.0 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
[]
[Executioner]
type = Steady
[]
[MultiApps]
[viz]
type = FullSolveMultiApp
input_files = "detailedMesh.i"
execute_on = "final"
[]
[]
[Transfers]
###### Transfers to the detailedMesh at the end of the coupled simulations
[subchannel_transfer]
type = SCMSolutionTransfer
to_multi_app = viz
variable = 'mdot SumWij P DP h T rho mu S'
[]
[]
(modules/subchannel/validation/psbt/psbt_ss/psbt.i)
# M. Avramova et al., 2012,
# OECD/NRC Benchmark Based on NUPEC PWR
# Sub-channel and Bundle Tests (PSBT). Volume III: Departure from Nucleate Boiling
# Case:01-5237
T_in = 502.35
# [1e+6 kg/m^2-hour] turns into kg/m^2-sec
mass_flux_in = ${fparse 1e+6 * 16.95 / 3600.}
P_out = 14.72e6 # Pa
[QuadSubChannelMesh]
[sub_channel]
type = SCMQuadSubChannelMeshGenerator
nx = 6
ny = 6
n_cells = 20
pitch = 0.0126
pin_diameter = 0.00950
gap = 0.00095
heated_length = 3.658
spacer_z = '0.0 0.229 0.457 0.686 0.914 1.143 1.372 1.600 1.829 2.057 2.286 2.515 2.743 2.972 3.200 3.429'
spacer_k = '0.7 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4 1.0 0.4'
[]
[fuel_pins]
type = SCMQuadPinMeshGenerator
input = sub_channel
nx = 6
ny = 6
n_cells = 20
pitch = 0.0126
heated_length = 3.658
[]
[]
[AuxVariables]
[mdot]
block = sub_channel
[]
[SumWij]
block = sub_channel
[]
[P]
block = sub_channel
[]
[DP]
block = sub_channel
[]
[h]
block = sub_channel
[]
[T]
block = sub_channel
[]
[Tpin]
block = fuel_pins
[]
[rho]
block = sub_channel
[]
[mu]
block = sub_channel
[]
[S]
block = sub_channel
[]
[w_perim]
block = sub_channel
[]
[q_prime]
block = fuel_pins
[]
[]
[FluidProperties]
[water]
type = Water97FluidProperties
[]
[]
[SubChannel]
type = QuadSubChannel1PhaseProblem
fp = water
n_blocks = 1
beta = 0.08
CT = 2.6
compute_density = true
compute_viscosity = true
compute_power = true
P_out = ${P_out}
implicit = true
segregated = false
staggered_pressure = false
monolithic_thermal = false
verbose_subchannel = true
interpolation_scheme = exponential
deformation = true # this flag allows the re-calculation of subchannel geometric parameters based on the dpin value
[]
[ICs]
[S_IC]
type = SCMQuadFlowAreaIC
variable = S
[]
[w_perim_IC]
type = SCMQuadWettedPerimIC
variable = w_perim
[]
[q_prime_IC]
type = SCMQuadPowerIC
variable = q_prime
power = 3.23e6 # W
filename = "power_profile.txt"
[]
[T_ic]
type = ConstantIC
variable = T
value = ${T_in}
[]
[Dpin_ic]
type = ConstantIC
variable = Dpin
value = 0.00950
[]
[P_ic]
type = ConstantIC
variable = P
value = 0.0
[]
[DP_ic]
type = ConstantIC
variable = DP
value = 0.0
[]
[Viscosity_ic]
type = ViscosityIC
variable = mu
p = ${P_out}
T = T
fp = water
[]
[rho_ic]
type = RhoFromPressureTemperatureIC
variable = rho
p = ${P_out}
T = T
fp = water
[]
[h_ic]
type = SpecificEnthalpyFromPressureTemperatureIC
variable = h
p = ${P_out}
T = T
fp = water
[]
[mdot_ic]
type = ConstantIC
variable = mdot
value = 0.0
[]
[]
[AuxKernels]
[T_in_bc]
type = ConstantAux
variable = T
boundary = inlet
value = ${T_in}
execute_on = 'timestep_begin'
[]
[mdot_in_bc]
type = SCMMassFlowRateAux
variable = mdot
boundary = inlet
area = S
mass_flux = ${mass_flux_in}
execute_on = 'timestep_begin'
[]
[]
[Outputs]
exodus = true
csv = true
[Temp_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = T
execute_on = final
file_base = "Temp_Out.txt"
height = 3.658
[]
[mdot_Out_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_Out.txt"
height = 3.658
[]
[mdot_In_MATRIX]
type = QuadSubChannelNormalSliceValues
variable = mdot
execute_on = final
file_base = "mdot_In.txt"
height = 0.0
[]
[]
[Postprocessors]
[total_pressure_drop]
type = SubChannelDelta
variable = P
execute_on = "timestep_end"
[]
[T1]
type = SubChannelPointValue
variable = T
index = 0
execute_on = "timestep_end"
height = 3.658
[]
[T2]
type = SubChannelPointValue
variable = T
index = 7
execute_on = "timestep_end"
height = 3.658
[]
[T3]
type = SubChannelPointValue
variable = T
index = 14
execute_on = "timestep_end"
height = 3.658
[]
[T4]
type = SubChannelPointValue
variable = T
index = 21
execute_on = "timestep_end"
height = 3.658
[]
[T5]
type = SubChannelPointValue
variable = T
index = 28
execute_on = "timestep_end"
height = 3.658
[]
[T6]
type = SubChannelPointValue
variable = T
index = 35
execute_on = "timestep_end"
height = 3.658
[]
[PinTemp]
type = SCMPinSurfaceTemperature
index = 10
height = 3.658
[]
[]
[Executioner]
type = Steady
[]