- p2Pressure at downstream boundary
C++ Type:double
Description:Pressure at downstream boundary
- fluxFlux across boundary
C++ Type:PostprocessorName
Description:Flux across boundary
- p1Pressure at upstream boundary
C++ Type:double
Description:Pressure at upstream boundary
- areaCross-sectional area
C++ Type:PostprocessorName
Description:Cross-sectional area
NumbatEffectivePermeability
Calculates effective permeability of equivalent homogeneous model
This Postprocessor is useful to calculate the effective permeability in a particular direction for heterogeneous models. This should be used in a steady simulation with a fixed pressure gradient, from which the flux over a boundary can be used to calculate the effective permeability using Darcy's law where is viscosity, is the length of the model in the direction of flow, is the cross-sectional area of the boundary and is the pressure difference across the model.
note
This Postprocessor is only really useful to determine the effective permeability of a heterogeneous model, and is otherwise not useful in simulations of density-driven convection.
Input 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
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.
- componentzThe component in the direction of flow (default is z)
Default:z
C++ Type:MooseEnum
Description:The component in the direction of flow (default is z)
Optional Parameters
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Description:Set the enabled status of the MooseObject.
- 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
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.
- outputsVector of output names were you would like to restrict the output of variables(s) associated with this object
C++ Type:std::vector
Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
Description:Adds user-defined labels for accessing object parameters via control logic.
- 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
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).
- force_preauxFalseForces the GeneralUserObject to be executed in PREAUX
Default:False
C++ Type:bool
Description:Forces the GeneralUserObject to be executed in PREAUX
Advanced Parameters
Input Files
- tests/effective_permeability/2D_homogeneous.i
- tests/effective_permeability/3D_homogeneous.i
- tests/effective_permeability/2D_harmonic.i
- tests/effective_permeability/3D_barrier.i
- tests/effective_permeability/2D_arithmetic.i
- tests/effective_permeability/2D_barrier.i
- tests/effective_permeability/3D_arithmetic.i
- tests/effective_permeability/3D_harmonic.i