Postprocess System
Tensor operators under this system are executed at the end of a MOOSE timestep, right before output occurs. Posprocess operators allow for the computation of outputted postprocessed fields, like for example a Fourier filtered version of a microstructure. Dependency resolution is applied to automatically sort the execution order of dependent operators.
Overview
Example Input File Syntax
Available Objects
- Marlin App
- ComputeDisplacementsCompute updated displacements from the deformation gradient tensor.
- ComputeGroupGroup of operators with internal dependency resolution and optional JIT tracing support.
- ComputeVonMisesStressCompute vonMises stress.
- ConstantReciprocalTensorConstant tensor in reciprocal space.
- ConstantTensorConstant tensor in real space.
- DeAliasingTensorCreate a de-aliasing filter.
- FCCPFCLinearReciprocal space linear prefactor for the two-mode FCC phase-field crystal model.
- FCCPFCNonlinearReciprocal space nonlinear term for the two-mode FCC phase-field crystal model.
- FFTElasticChemicalPotentialFFT based elastic strain energy chemical potential solve.
- FFTGradientTensor gradient.
- FFTGradientSquareTensor gradient.
- FFTMechanicsdeGeus variational mechanics solve. Updates the coupled buffer holding the deformation gradient tensor.
- FFTQuasistaticElasticityFFT based monolithic homogeneous quasistatic elasticity solve.
- FiniteDifferenceLaplacianComputes the Laplacian using finite differences.
- ForwardFFTPerformFFT object.
- GradientVectorGradient of the coupled tensor buffer returned as a stacked torch tensor.
- HyperElasticIsotropicHyperelastic isotropic constitutive model.
- InverseFFTPerformFFT object.
- LBMAllenCahnSourceCompute Allen-Cahn source term for phase field model.
- LBMApplyForcesCompute object for LB forces
- LBMBGKCollisionTemplate object for LBM collision dynamics
- LBMBounceBackLBMBounceBack object
- LBMComputeChemicalPotentialCompute LB checmial potential for pahse field coupling.
- LBMComputeDensityCompute object for macroscopic density reconstruction.
- LBMComputeEffectiveRelaxationCompute local effective relaxation time matrix based on local pore size and Knudsen number.
- LBMComputeForcesCompute object for LB forces
- LBMComputeResidualCompute object for LBM residual.
- LBMComputeSurfaceForcesCompute object for LB surface forces
- LBMComputeVelocityCompute object for macroscopic velocity reconstruction.
- LBMComputeVelocityMagnitudeLBMComputeVelocityMagnitude object.
- LBMConstantTensorLBMConstantTensor object.
- LBMConvectiveOutflowConvective outflow boundary condition. Applies df/dt + U_c * df/dn = 0 at the boundary, discretized as f(x_b, t) = (f(x_b, t-1) + U_c * f(x_n, t)) / (1 + U_c). U_c can be a fixed value or computed automatically as the mean normal velocity at the boundary plane.
- LBMDirichletBCLBMDirichletBC object
- LBMEquilibriumCompute LB equilibrium distribution object.
- LBMFixedFirstOrderBCLBMFixedFirstOrderBC object
- LBMFixedZerothOrderBCLBMFixedZerothOrderBC object
- LBMForceDistributionCompute object for the force distribution function (source term) for phase field model..
- LBMIsotropicGradientCompute isotropic gradient object.
- LBMIsotropicLaplacianCompute isotropic Laplacian object.
- LBMMRTCollisionTemplate object for LBM collision dynamics
- LBMMicroscopicZeroGradientBCLBMMicroscopicZeroGradientBC object
- LBMNeumannBCLBMNeumannBC object
- LBMNonEquilibriumExtrapolationNon-equilibrium extrapolation boundary condition (Guo et al., 2002). Reconstructs the boundary distribution as f = feq(prescribed) + fneq(interior), where the missing moment is extrapolated from interior nodes. Density, velocity, and equilibrium are computed on-the-fly from the streamed population.
- LBMPhaseEquilibriumCompute LB equilibrium distribution object for phase field parameter.
- LBMPhaseFieldPressureCompute pressure for phase field model.
- LBMPressureCorrectedEquilibriumCompute object for correcting the equilibrium distribution function for phase field model.
- LBMSmagorinskyCollisionTemplate object for LBM collision dynamics
- LBMSmagorinskyMRTCollisionTemplate object for LBM collision dynamics
- LBMSpecularReflectionBoundaryLBM combination of bounce-back and specular reflection boundary condition. Uses a precomputed lookup table to determine specular reflection directions for each boundary node type in complex geometries (D2Q9 only).
- LBMStackTensorsStack given scalar tensor buffers and output vectorial tensor.
- LibtorchGibbsEnergyCalculates Gibbs energy, chemical potential, and driving force for order parameters using a Libtorch model.
- MacroscopicShearTensorDeGeus mechanics test material.
- MooseFunctionTensorMap a MooseFunction to a tensor.
- NEML2GradientVectorObject requires NEML2.
- NEML2TensorComputeThe
NEML2library is required but not enabled. Refer to the documentation for guidance on how to enable it. (Original description: Compute object wrapper for a NEML2 model) - ParsedComputeParsedCompute object.
- PhaseMechanicsTestDeGeus mechanics test material.
- RandomTensorUniform random IC with values between
minandmax. - RankTwoIdentityRank two identity tensor in real space.
- ReciprocalAllenCahnCalculates the Allen-Cahn bulk driving force masked using psi.
- ReciprocalLaplacianFactorReciprocal space Laplacian IC.
- ReciprocalLaplacianSquareFactorReciprocal space Laplacian squared IC.
- ReciprocalMatDiffusionCalculates the divergence of flux for a variable mobility in reciprocal space.
- SmoothRectangleComputeInterpolate a value between the inside and outside of a rectangle smoothly.
- SwiftHohenbergLinearReciprocal space linear term in the semi-implicit time integration of the Swift-Hohenberg equation IC.
Available Actions
- Marlin App
- AddTensorComputeActionAdd an TensorOperator object to the simulation.