- 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
- 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
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
- max_thickness_increment1e-06Maximum reaction layer thickness increment over a single time step
Default:1e-06
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Maximum reaction layer thickness increment over a single time step
- reaction_dt_min1e-15The minimum reaction time step, which is applied once after the reaction rate exceeds the threshold reaction rate for the first time
Default:1e-15
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The minimum reaction time step, which is applied once after the reaction rate exceeds the threshold reaction rate for the first time
- reaction_exponent1The reaction exponent
Default:1
C++ Type:PostprocessorName
Unit:(no unit assumed)
Controllable:No
Description:The reaction exponent
- reaction_rateKThe reaction rate
Default:K
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:The reaction rate
- reaction_rate_threshold0The threshold reaction rate, below which the reaction does not occur
Default:0
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The threshold reaction rate, below which the reaction does not occur
Power Law Reaction Growth
Calculates the reaction time, average reaction rate, and reaction layer thickness associated with power law reaction layer growth.
Description
The PowerLawReactionGrowth class is used to calculate the reaction time, average reaction rate, and reaction layer thickness associated with power law reaction layer growth described by: (1) where is the thickness in meters, is the reaction rate in m/s, is the unitless reaction exponent, which defaults to 0.5, and is the reaction time in seconds.
A reaction rate threshold reaction_rate_threshold, below which the reaction does not occur, can be specified to start and stop growth during the simulation. A non-zero reaction rate threshold is recommended to decouple reaction time from simulation time . Reaction time does not accumulate when the reaction rate is below the reaction rate threshold, preventing reaction layer velocity from decaying during periods in which the reaction rate or other simulation conditions would limit appreciable reaction layer growth (e.g., reactor shutdown).
Note that the reaction layer velocity approaches infinity as reaction time approaches zero. A small, non-zero reaction time step minimum reaction_dt_min can be used to minimize convergence issues when the reaction starts for the first time.
Example Input Syntax
[Materials<<<{"href": "../../syntax/Materials/index.html"}>>>]
[reaction_layer]
type = ADPowerLawReactionGrowth<<<{"description": "Calculates the reaction time, average reaction rate, and reaction layer thickness associated with power law reaction layer growth.", "href": "PowerLawReactionGrowth.html"}>>>
reaction_rate<<<{"description": "The reaction rate"}>>> = rate
reaction_rate_threshold<<<{"description": "The threshold reaction rate, below which the reaction does not occur"}>>> = 1e-6
reaction_dt_min<<<{"description": "The minimum reaction time step, which is applied once after the reaction rate exceeds the threshold reaction rate for the first time"}>>> = 0.1
reaction_exponent<<<{"description": "The reaction exponent"}>>> = 0.5
outputs<<<{"description": "Vector of output names where you would like to restrict the output of variables(s) associated with this object"}>>> = all
[]
[]Input 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
Outputs Parameters
- 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
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.