- cVacancy phase variable
C++ Type:std::vector<VariableName>
Controllable:No
Description:Vacancy phase variable
- vArray of coupled variables
C++ Type:std::vector<VariableName>
Controllable:No
Description:Array of coupled variables
PolycrystalDiffusivity
Generates a diffusion coefficient to distinguish between the bulk, pore, grain boundaries, and surfaces
The PolycrystalDiffusivity material builds a diffusivity function that distinguishes between the solid and void phases, grain boundaries, and free surfaces, thus allowing different diffusion rates in those regions. The final diffusion function is expressed as:
.
Here, is the bulk diffusion coefficient in the matrix/solid phase, is the diffusion coefficient within the void/pore/bubble phase, is the coefficient for the surface diffusion, and is the coefficient of diffusion along the grain boundaries. The prefactors for the diffusion along various interfaces are chosen such that, , where denotes the diffusivity along the interface (i.e., or ). , , , are the indices to activate different diffusion mechanisms. When the diffusion values in different regions are unknown, replace those with weighted bulk diffusion coefficients.
Input Parameters
- Dbulk1Diffusion coefficient for volumetric diffusion in solid
Default:1
C++ Type:double
Controllable:No
Description:Diffusion coefficient for volumetric diffusion in solid
- Dgb1Diffusion coefficient for grain boundary diffusion
Default:1
C++ Type:double
Controllable:No
Description:Diffusion coefficient for grain boundary diffusion
- Dsurf1Diffusion coefficient for surface diffusion
Default:1
C++ Type:double
Controllable:No
Description:Diffusion coefficient for surface diffusion
- Dvoid1Diffusion coefficient for diffusion within void/pore/bubble
Default:1
C++ Type:double
Controllable:No
Description:Diffusion coefficient for diffusion within void/pore/bubble
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
- bulk_weight1Bulk diffusion weight
Default:1
C++ Type:double
Controllable:No
Description:Bulk diffusion weight
- computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
Default:True
C++ Type:bool
Controllable:No
Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
- constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
Default:NONE
C++ Type:MooseEnum
Controllable:No
Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
- declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
- diffusivityDThe name of the diffusion property
Default:D
C++ Type:MaterialPropertyName
Controllable:No
Description:The name of the diffusion property
- gb_weight1Grain boundary diffusion weight
Default:1
C++ Type:double
Controllable:No
Description:Grain boundary diffusion weight
- op_numArray of coupled variables (num_name)
C++ Type:unsigned int
Controllable:No
Description:Array of coupled variables (num_name)
- 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
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.
- solid_switchhmSwitching Function Materials for the solid
Default:hm
C++ Type:MaterialPropertyName
Controllable:No
Description:Switching Function Materials for the solid
- surf_weight1Surface diffusion weight
Default:1
C++ Type:double
Controllable:No
Description:Surface diffusion weight
- var_name_baseArray of coupled variables (base_name)
C++ Type:std::string
Controllable:No
Description:Array of coupled variables (base_name)
- void_switchhbSwitching Function Materials for the void
Default:hb
C++ Type:MaterialPropertyName
Controllable:No
Description:Switching Function Materials for the void
- void_weight1Void diffusion weight
Default:1
C++ Type:double
Controllable:No
Description:Void diffusion weight
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:Yes
Description:Set the enabled status of the MooseObject.
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
- 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
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.
Advanced Parameters
- output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)
C++ Type:std::vector<std::string>
Controllable:No
Description:List of material properties, from this material, to output (outputs must also be defined to an output type)
- outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object
Default:none
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object