- blockThe list of blocks (ids) that this object will be applied to. Leave empty to apply to all blocks.
C++ Type:std::vector<SubdomainName>
Unit:(no unit assumed)
Controllable:No
Description:The list of blocks (ids) that this object will be applied to. Leave empty to apply to all blocks.
- execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Unit:(no unit assumed)
Controllable:No
Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
- 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
Unit:(no unit assumed)
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.
- variableVariable labelling the weak form this kernel is added to
C++ Type:std::string
Unit:(no unit assumed)
Controllable:No
Description:Variable labelling the weak form this kernel is added to
- vector_coefficientName of body force density $\vec f$.
C++ Type:std::string
Unit:(no unit assumed)
Controllable:No
Description:Name of body force density $\vec f$.
MFEMVectorDomainLFKernel
Adds the domain integrator to an MFEM problem for the linear form arising from the weak form of the forcing term .
Overview
Adds the domain integrator for integrating the linear form
where is the test variable and is a vector forcing coefficient.
This term arises from the weak form of the forcing term
Example Input File Syntax
[Mesh]
type = MFEMMesh
file = gold/beam-tet.mesh
dim = 3
uniform_refine = 2
displacement = "displacement"
[]
[Problem]
type = MFEMProblem
[]
[FESpaces]
[H1FESpace]
type = MFEMVectorFESpace
fec_type = H1
fec_order = FIRST
range_dim = 3
ordering = "vdim"
[]
[]
[Variables]
[displacement]
type = MFEMVariable
fespace = H1FESpace
[]
[]
[BCs]
[dirichlet]
type = MFEMVectorDirichletBC
variable = displacement
boundary = '1'
values = '0.0 0.0 0.0'
[]
[]
[Materials]
[Rigidium]
type = MFEMGenericConstantMaterial
prop_names = 'lambda mu'
prop_values = '50.0 50.0'
block = 1
[]
[Bendium]
type = MFEMGenericConstantMaterial
prop_names = 'lambda mu'
prop_values = '1.0 1.0'
block = 2
[]
[RigidiumWeightDensity]
type = MFEMGenericConstantVectorMaterial
prop_names = 'gravitational_force_density'
prop_values = '0.0 0.0 -1e-2'
block = 1
[]
[BendiumWeightDensity]
type = MFEMGenericConstantVectorMaterial
prop_names = 'gravitational_force_density'
prop_values = '0.0 0.0 -5e-3'
block = 2
[]
[]
[Kernels]
[diff]
type = MFEMLinearElasticityKernel
variable = displacement
lambda = lambda
mu = mu
[]
[gravity]
type = MFEMVectorDomainLFKernel
variable = displacement
vector_coefficient = gravitational_force_density
[]
[]
[Preconditioner]
[boomeramg]
type = MFEMHypreBoomerAMG
fespace = H1FESpace
l_max_its = 20
l_tol = 1e-5
print_level = 2
[]
[]
[Solver]
type = MFEMHyprePCG
preconditioner = boomeramg
l_max_its = 100
l_tol = 1e-4
l_abs_tol = 0.0
print_level = 2
[]
[Executioner]
type = MFEMSteady
device = "cpu"
[]
[Outputs]
[ParaViewDataCollection]
type = MFEMParaViewDataCollection
file_base = OutputData/Gravity
vtk_format = ASCII
[]
[]
Input 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
Unit:(no unit assumed)
Controllable:No
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>
Unit:(no unit assumed)
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
Unit:(no unit assumed)
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- execution_order_group0Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
Default:0
C++ Type:int
Unit:(no unit assumed)
Controllable:No
Description:Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
- force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
- force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
- force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup
- 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
Unit:(no unit assumed)
Controllable:No
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.