SideFluxIntegral

Computes the integral of the flux over the specified boundary

Example Input Syntax

[Postprocessors]
  [average_temperature]
    type = ElementAverageValue
    variable = temperature
  []
  [outlet_heat_flux]
    type = ADSideFluxIntegral
    variable = temperature
    boundary = right
    diffusivity = thermal_conductivity
  []
[]

Input Parameters

boundaryThe list of boundary IDs from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Options:
Description:The list of boundary IDs from the mesh where this boundary condition applies
diffusivityThe name of the diffusivity material property that will be used in the flux computation.
C++ Type:MaterialPropertyName
Options:
Description:The name of the diffusivity material property that will be used in the flux computation.
variableThe name of the variable that this boundary condition applies to
C++ Type:std::vector<VariableName>
Options:
Description:The name of the variable that this boundary condition applies to

Required Parameters

execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, TRANSFER
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

Optional Parameters

allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
Default:False
C++ Type:bool
Options:
Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.
outputsVector of output names were you would like to restrict the output of variables(s) associated with this object
C++ Type:std::vector<OutputName>
Options:
Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object
use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Options:
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

Advanced Parameters

(tutorials/darcy_thermo_mech/step08_postprocessors/problems/step8.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 3
  xmax = 0.304 # Length of test chamber
  ymax = 0.0257 # Test chamber radius
  uniform_refine = 2
[]

[Variables]
  [pressure]
  []
  [temperature]
    initial_condition = 300 # Start at room temperature
  []
[]

[AuxVariables]
  [velocity]
    order = CONSTANT
    family = MONOMIAL_VEC
  []
[]

[Kernels]
  [darcy_pressure]
    type = DarcyPressure
    variable = pressure
  []
  [heat_conduction]
    type = ADHeatConduction
    variable = temperature
  []
  [heat_conduction_time_derivative]
    type = ADHeatConductionTimeDerivative
    variable = temperature
  []
  [heat_convection]
    type = DarcyAdvection
    variable = temperature
    pressure = pressure
  []
[]

[AuxKernels]
  [velocity]
    type = DarcyVelocity
    variable = velocity
    execute_on = timestep_end
    pressure = pressure
  []
[]

[BCs]
  [inlet]
    type = DirichletBC
    variable = pressure
    boundary = left
    value = 4000 # (Pa) From Figure 2 from paper.  First data point for 1mm spheres.
  []
  [outlet]
    type = DirichletBC
    variable = pressure
    boundary = right
    value = 0 # (Pa) Gives the correct pressure drop from Figure 2 for 1mm spheres
  []
  [inlet_temperature]
    type = FunctionDirichletBC
    variable = temperature
    boundary = left
    function = 'if(t<0,350+50*t,350)'
  []
  [outlet_temperature]
    type = HeatConductionOutflow
    variable = temperature
    boundary = right
  []
[]

[Materials]
  [column]
    type = PackedColumn
    radius = 1
    temperature = temperature
    porosity = '0.25952 + 0.7*y/0.0257'
  []
[]

[Postprocessors]
  [average_temperature]
    type = ElementAverageValue
    variable = temperature
  []
  [outlet_heat_flux]
    type = ADSideFluxIntegral
    variable = temperature
    boundary = right
    diffusivity = thermal_conductivity
  []
[]

[VectorPostprocessors]
  [temperature_sample]
    type = LineValueSampler
    num_points = 500
    start_point = '0.1 0      0'
    end_point =   '0.1 0.0257 0'
    variable = temperature
    sort_by = y
  []
[]

[Problem]
  type = FEProblem
  coord_type = RZ
  rz_coord_axis = X
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  automatic_scaling = true

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  end_time = 100
  dt = 0.25
  start_time = -1

  steady_state_tolerance = 1e-5
  steady_state_detection = true

  [TimeStepper]
    type = FunctionDT
    function = 'if(t<0,0.1,0.25)'
  []
[]

[Outputs]
  exodus = true
  csv = true
[]

Example Input Syntax
Input Parameters

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SideFluxIntegral

Example Input Syntax

Input Parameters

Required Parameters

Optional Parameters

Advanced Parameters