MFEMComplexWeakForm

Overview

The MFEMComplexWeakForm is a MOOSE object responsible for the construction of an initialised MFEM ComplexEquationSystem, based on the set of kernels and boundary conditions provided by the user. If no MFEMWeakFormBase object is specified by the user in a complex problem using an MFEMSteady executioner, a default MFEMComplexWeakForm object will be created to set up a ComplexEquationSystem using all kernels and boundary conditions added in the input file.

Example Input File Syntax

[WeakForms<<<{"href": "../../../syntax/WeakForms/index.html"}>>>]
  [Complex]
    type = MFEMComplexWeakForm<<<{"description": "Builds a complex-valued MFEM ComplexEquationSystem from the complex kernels and boundary conditions named by this weak form.", "href": "MFEMComplexWeakForm.html"}>>>
    kernels<<<{"description": "List of kernels to add to the weak form"}>>> = 'diffusion_complex mass_complex'
    bcs<<<{"description": "List of boundary conditions to add to the weak form"}>>> = 'dbc'
  []
[]

Input Parameters

bcsList of boundary conditions to add to the weak form
C++ Type:std::vector<MFEMBoundaryConditionName>
Controllable:No
Description:List of boundary conditions to add to the weak form
kernelsList of kernels to add to the weak form
C++ Type:std::vector<MFEMKernelName>
Controllable:No
Description:List of kernels to add to the weak form

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.

Advanced Parameters

Input Files

(test/tests/mfem/weakforms/complex_weakform.i)
(test/tests/mfem/weakforms/complex_weakform_real_problem.i)

(test/tests/mfem/weakforms/complex_weakform.i)

!include ../complex/complex.i

# Naming every kernel and boundary condition explicitly must reproduce the default weak form,
# which uses all of them.
[WeakForms]
  [Complex]
    type = MFEMComplexWeakForm
    kernels = 'diffusion_complex mass_complex'
    bcs = 'dbc'
  []
[]

[Postprocessors]
  [u_error]
    type = MFEMComplexL2Error
    variable = u
    function_real = u0_r
    function_imag = u0_i
  []
[]

[Outputs]
  [ComplexCSV]
    type = CSV
    file_base = OutputData/ComplexWeakForm
  []
[]

(test/tests/mfem/weakforms/complex_weakform.i)

!include ../complex/complex.i

# Naming every kernel and boundary condition explicitly must reproduce the default weak form,
# which uses all of them.
[WeakForms]
  [Complex]
    type = MFEMComplexWeakForm
    kernels = 'diffusion_complex mass_complex'
    bcs = 'dbc'
  []
[]

[Postprocessors]
  [u_error]
    type = MFEMComplexL2Error
    variable = u
    function_real = u0_r
    function_imag = u0_i
  []
[]

[Outputs]
  [ComplexCSV]
    type = CSV
    file_base = OutputData/ComplexWeakForm
  []
[]

(test/tests/mfem/weakforms/complex_weakform_real_problem.i)

!include ../kernels/darcy.i

# A complex weak form cannot consume the real boundary conditions of a real problem.
[WeakForms]
  [Darcy]
    type = MFEMComplexWeakForm
    kernels = 'VelocityMass PressureGrad VelocityDiv'
    bcs = 'flux_boundaries'
  []
[]

Overview
Example Input File Syntax
Input Parameters
Input Files