SCMDetailedQuadSubChannelMeshGenerator

Creates a detailed mesh of subchannels in a square lattice arrangement

Overview

This is a mesh generator used for visualization purposes only. It is part of an input file that creates a 3D realistic mesh of the subchannels in a square lattice arrangement. This input file has a Problem block with the NoSolveProblem because it is not used to perform any calculations. It is used to create a detailed 3D mesh that the SCM solution gets projected on. The center of the mesh is the origin.

Input Parameters

gap(Its an added distance between a perimetric pin and the duct: Edge Pitch W = pitch/2 - pin_diameter/2 + gap) [m]
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:(Its an added distance between a perimetric pin and the duct: Edge Pitch W = pitch/2 - pin_diameter/2 + gap) [m]
heated_lengthHeated length [m]
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Heated length [m]
n_cellsThe number of cells in the axial direction
C++ Type:unsigned int
Controllable:No
Description:The number of cells in the axial direction
nxNumber of channels in the x direction [-]
C++ Type:unsigned int
Controllable:No
Description:Number of channels in the x direction [-]
nyNumber of channels in the y direction [-]
C++ Type:unsigned int
Controllable:No
Description:Number of channels in the y direction [-]
pin_diameterRod diameter [m]
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Rod diameter [m]
pitchPitch [m]
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Pitch [m]

Required Parameters

block_id0Block ID used for the mesh subdomain.
Default:0
C++ Type:unsigned int
Controllable:No
Description:Block ID used for the mesh subdomain.
unheated_length_entry0Unheated length at entry [m]
Default:0
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Unheated length at entry [m]
unheated_length_exit0Unheated length at exit [m]
Default:0
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Unheated length at exit [m]

Optional Parameters

enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:No
Description:Set the enabled status of the MooseObject.
save_with_nameKeep the mesh from this mesh generator in memory with the name specified
C++ Type:std::string
Controllable:No
Description:Keep the mesh from this mesh generator in memory with the name specified

Advanced Parameters

nemesisFalseWhether or not to output the mesh file in the nemesisformat (only if output = true)
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not to output the mesh file in the nemesisformat (only if output = true)
outputFalseWhether or not to output the mesh file after generating the mesh
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not to output the mesh file after generating the mesh
show_infoFalseWhether or not to show mesh info after generating the mesh (bounding box, element types, sidesets, nodesets, subdomains, etc)
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not to show mesh info after generating the mesh (bounding box, element types, sidesets, nodesets, subdomains, etc)

Debugging Parameters

Input Files

(modules/subchannel/test/tests/transfers/multiapp_detailed_solution_transfer/quad_viz.i)
(modules/subchannel/test/tests/mesh/detailed_quad_pin_mesh/coords.i)
(modules/subchannel/validation/psbt/psbt_ss/3d.i)
(modules/subchannel/validation/Blockage/PNNL_7x7/detailedMesh.i)
(modules/subchannel/examples/heating_test/3d.i)
(modules/subchannel/validation/PNNL_12_pin/transient/3d.i)
(modules/subchannel/examples/coupling/thermo_mech/quad/3d.i)
(modules/subchannel/test/tests/problems/coupling/3d.i)
(modules/subchannel/verification/friction_model_verification/3d.i)
(modules/subchannel/test/tests/mesh/detailed_quad_sub_channel_mesh/coords.i)
(modules/subchannel/validation/psbt/psbt_null_transient/3d.i)
(modules/subchannel/verification/enthalpy_mixing_verification/3d.i)
(modules/subchannel/validation/PNNL_12_pin/steady_state/3d.i)
(modules/subchannel/examples/mesh_generator/3d.i)

(modules/subchannel/test/tests/transfers/multiapp_detailed_solution_transfer/quad_viz.i)

[GlobalParams]
  nx = 3
  ny = 3
  n_cells = 3
  pitch = 1
  heated_length = 0.2
  pin_diameter = 0.5
[]

[Mesh]
  [sub_channel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    gap = 0.1
  []

  [fuel_pins]
    type = SCMDetailedQuadPinMeshGenerator
    input = sub_channel
  []
[]

[AuxVariables]
  [P]
    block = sub_channel
  []
  [T]
    block = fuel_pins
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Executioner]
  type = Transient
[]

[Outputs]
  exodus = true
[]

(modules/subchannel/test/tests/mesh/detailed_quad_pin_mesh/coords.i)

[GlobalParams]
  nx = 3
  ny = 3
  n_cells = 2
  pitch = 1
  gap = 0.1
  heated_length = 1
  pin_diameter = 0.5
[]

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
  []
  [pins]
    type = SCMDetailedQuadPinMeshGenerator
    input = subchannel
  []
[]

(modules/subchannel/validation/psbt/psbt_ss/3d.i)

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    nx = 6
    ny = 6
    n_cells = 20
    pitch = 0.0126
    pin_diameter = 0.00950
    gap = 0.00095
    heated_length = 1.0
  []

  [fuel_pins]
    type = SCMDetailedQuadPinMeshGenerator
    input = subchannel
    nx = 6
    ny = 6
    n_cells = 20
    pitch = 0.0126
    pin_diameter = 0.00950
    heated_length = 1.0
  []
[]

[AuxVariables]
  [mdot]
    block = subchannel
  []
  [SumWij]
    block = subchannel
  []
  [P]
    block = subchannel
  []
  [DP]
    block = subchannel
  []
  [h]
    block = subchannel
  []
  [T]
    block = subchannel
  []
  [rho]
    block = subchannel
  []
  [S]
    block = subchannel
  []
  [w_perim]
    block = subchannel
  []
  [mu]
    block = subchannel
  []
  [q_prime]
    block = fuel_pins
  []
  [Tpin]
    block = fuel_pins
  []
  [Dpin]
    block = fuel_pins
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
[]

[Executioner]
  type = Steady
[]

(modules/subchannel/validation/Blockage/PNNL_7x7/detailedMesh.i)

[GlobalParams]
    nx = 8
    ny = 8
    n_cells = 36
    pitch = 0.0136906
    pin_diameter = 0.0099568
    gap = 0.0036957
    heated_length = 1.4224
  []

  [Mesh]
    [subchannel]
      type = SCMDetailedQuadSubChannelMeshGenerator
    []
  []

  [AuxVariables]
    [mdot]
    []
    [SumWij]
    []
    [P]
    []
    [DP]
    []
    [h]
    []
    [T]
    []
    [Tpin]
    []
    [Dpin]
    []
    [rho]
    []
    [mu]
    []
    [S]
    []
    [w_perim]
    []
    [q_prime]
    []
  []

  [Problem]
    type = NoSolveProblem
  []

  [Outputs]
    exodus = true
  []

  [Executioner]
    type = Steady
  []

(modules/subchannel/examples/heating_test/3d.i)

pitch = 0.0126
unheated_length_entry = 2.5
heated_length = 5.0
unheated_length_exit = 2.5
height = ${fparse unheated_length_entry + heated_length + unheated_length_exit}
n_cells = 20

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    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}'
  []
[]

[AuxVariables]
  [mdot]
  []
  [SumWij]
  []
  [P]
  []
  [DP]
  []
  [h]
  []
  [T]
  []
  [rho]
  []
  [mu]
  []
  [S]
  []
  [w_perim]
  []
  [q_prime]
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
  csv = true
[]

[VectorPostprocessors]
  # These samplers are used for testing purposes.
  # Sampling over all nodes would creates megabytes of data
  # Ordering the samples by z-coordinate is consistent in parallel
  [sample_channel_edge]
    type = LineValueSampler
    variable = 'mdot SumWij P DP h T rho mu S w_perim'
    sort_by = 'z'
    num_points = ${fparse n_cells + 1}
    start_point = '${fparse pitch} 0 0'
    end_point = '${fparse pitch} 0  ${fparse height}'
  []
  [sample_channel_corner]
    type = LineValueSampler
    variable = 'mdot SumWij P DP h T rho mu S w_perim'
    sort_by = 'z'
    num_points = ${fparse n_cells + 1}
    start_point = '${fparse pitch} ${fparse pitch} 0'
    end_point = '${fparse pitch} ${fparse pitch}  ${fparse height}'
  []
[]

[Executioner]
  type = Steady
[]

(modules/subchannel/validation/PNNL_12_pin/transient/3d.i)

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    nx = 7
    ny = 3
    n_cells = 48
    pitch = 0.014605
    pin_diameter = 0.012065
    gap = 0.0015875
    heated_length = 1.2192
  []
[]

[AuxVariables]
  [mdot]
  []
  [SumWij]
  []
  [P]
  []
  [DP]
  []
  [h]
  []
  [T]
  []
  [rho]
  []
  [mu]
  []
  [S]
  []
  [w_perim]
  []
  [q_prime]
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
[]

[Executioner]
  type = Transient
[]

(modules/subchannel/examples/coupling/thermo_mech/quad/3d.i)

[GlobalParams]
    nx = 2
    ny = 2
    n_cells = 25
    pitch = 0.0126
    pin_diameter = 0.00950
    gap = 0.00095
    heated_length = 1.0
[]

[Mesh]
    [subchannel]
        type = SCMDetailedQuadSubChannelMeshGenerator
    []
    [fuel_pins]
        type = SCMDetailedQuadPinMeshGenerator
        input = subchannel
    []
[]

[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
    []
[]

[Problem]
    type = NoSolveProblem
[]

[Outputs]
    exodus = true
[]

[Executioner]
    type = Steady
[]

(modules/subchannel/test/tests/problems/coupling/3d.i)

[GlobalParams]
    nx = 2
    ny = 2
    n_cells = 10
    pitch = 0.014605
    pin_diameter = 0.012065
    gap = 0.0015875
    heated_length = 1.0
[]

[Mesh]
    [subchannel]
        type = SCMDetailedQuadSubChannelMeshGenerator
    []
    [fuel_pins]
        type = SCMDetailedQuadPinMeshGenerator
        input = subchannel
    []
[]

[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
    []
[]

[Problem]
    type = NoSolveProblem
[]

[Outputs]
    csv = true
    exodus = true
[]

[Executioner]
    type = Steady
[]

[VectorPostprocessors]
  # These samplers are used for testing purposes.
  [sample_center_pin]
    type = LineValueSampler
    variable = 'q_prime Tpin Dpin'
    sort_by = 'z'
    num_points = 11
    start_point = '0 0 0'
    end_point = '0 0 1.0'
  []
[]

(modules/subchannel/verification/friction_model_verification/3d.i)

[Mesh]
    [subchannel]
      type = SCMDetailedQuadSubChannelMeshGenerator
      nx = 2
      ny = 1
      n_cells = 100
      pitch = 0.0126
      pin_diameter = 0.00950
      gap = 0.00095
      heated_length = 10.0
    []
  []

  [AuxVariables]
    [mdot]
    []
    [SumWij]
    []
    [P]
    []
    [DP]
    []
    [h]
    []
    [T]
    []
    [rho]
    []
    [mu]
    []
    [S]
    []
    [w_perim]
    []
    [q_prime]
    []
  []

  [Problem]
    type = NoSolveProblem
  []

  [Outputs]
    exodus = true
  []

  [Executioner]
    type = Steady
  []

(modules/subchannel/test/tests/mesh/detailed_quad_sub_channel_mesh/coords.i)

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    nx = 3
    ny = 3
    n_cells = 10
    pitch = 0.25
    pin_diameter = 0.125
    gap = 0.1
    heated_length = 1
  []
[]

(modules/subchannel/validation/psbt/psbt_null_transient/3d.i)

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    nx = 6
    ny = 6
    n_cells = 50
    pitch = 0.0126
    pin_diameter = 0.00950
    gap = 0.00095
    heated_length = 3.658
  []
[]

[AuxVariables]
  [mdot]
  []
  [SumWij]
  []
  [P]
  []
  [DP]
  []
  [h]
  []
  [T]
  []
  [rho]
  []
  [mu]
  []
  [S]
  []
  [w_perim]
  []
  [q_prime]
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
[]

[Executioner]
  type = Steady
  nl_rel_tol = 0.9
  l_tol = 0.9
[]

(modules/subchannel/verification/enthalpy_mixing_verification/3d.i)

[Mesh]
    [subchannel]
      type = SCMDetailedQuadSubChannelMeshGenerator
      nx = 2
      ny = 1
      n_cells = 100
      pitch = 0.0126
      pin_diameter = 0.00950
      gap = 0.00095 #
      heated_length = 10.0
    []
  []

  [AuxVariables]
    [mdot]
    []
    [SumWij]
    []
    [P]
    []
    [DP]
    []
    [h]
    []
    [T]
    []
    [rho]
    []
    [mu]
    []
    [S]
    []
    [w_perim]
    []
    [q_prime]
    []
  []

  [Problem]
    type = NoSolveProblem
  []

  [Outputs]
    exodus = true
  []

  [Executioner]
    type = Steady
  []

(modules/subchannel/validation/PNNL_12_pin/steady_state/3d.i)

[GlobalParams]
  ######## Geometry #
  nx = 7
  ny = 3
  n_cells = 48
  pitch = 0.014605
  pin_diameter = 0.012065
  gap = 0.0015875
  heated_length = 1.2192
[]

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
  []
  [pins]
    type = SCMDetailedQuadPinMeshGenerator
    input = subchannel
  []
[]

[AuxVariables]
  [mdot]
  []
  [SumWij]
  []
  [P]
  []
  [DP]
  []
  [h]
  []
  [T]
  []
  [Tpin]
  []
  [Dpin]
  []
  [rho]
  []
  [mu]
  []
  [S]
  []
  [w_perim]
  []
  [q_prime]
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
[]

[Executioner]
  type = Steady
[]

(modules/subchannel/examples/mesh_generator/3d.i)

[Mesh]
  [subchannel]
    type = SCMDetailedQuadSubChannelMeshGenerator
    nx = 6
    ny = 6
    n_cells = 20
    pitch = 0.0126
    pin_diameter = 0.00950
    gap = 0.00095
    heated_length = 1.00
  []
[]

[AuxVariables]
  [mdot]
  []
  [SumWij]
  []
  [P]
  []
  [DP]
  []
  [h]
  []
  [T]
  []
  [rho]
  []
  [mu]
  []
  [S]
  []
  [w_perim]
  []
  [q_prime]
  []
[]

[Problem]
  type = NoSolveProblem
[]

[Outputs]
  exodus = true
[]

[Executioner]
  type = Steady
  nl_rel_tol = 0.9
  l_tol = 0.9
[]

Overview
Input Parameters
Input Files