Diffusion Limited Reaction

Calculates losses due to diffusion limited reaction

Description

The kernel DiffusionLimitedReaction is used for applying a diffusion limited reaction of single gas atom interaction with dispersed spherical sinks. term of the form (1) where is the sink radius, is the sink concentration, is the single atom diffusivity, and is the single gas atom concentration.

Example Input Syntax


[./diff_rx_u]
  type = DiffusionLimitedReaction
  variable = u
  average_with_old = true
  radius = radius
  diffusivity = D
  sink_concentration = C_b
[../]
(test/tests/diffusion_limited_reaction/test.i)

Input Parameters

  • variableThe name of the variable that this Kernel operates on

    C++ Type:NonlinearVariableName

    Description:The name of the variable that this Kernel operates on

  • sink_concentrationMaterial name for spherical sink concentration

    C++ Type:MaterialPropertyName

    Description:Material name for spherical sink concentration

  • diffusivityMaterial name for atom diffusivity

    C++ Type:MaterialPropertyName

    Description:Material name for atom diffusivity

  • radiusMaterial name for radius of spherical sink

    C++ Type:MaterialPropertyName

    Description:Material name for radius of spherical sink

Required Parameters

  • diffusivity_dT0Material name for derivative of diffusivity with respect to temperature.

    Default:0

    C++ Type:MaterialPropertyName

    Description:Material name for derivative of diffusivity with respect to temperature.

  • average_with_oldTrueFlag to average the current rate with the rate of the previous time step

    Default:True

    C++ Type:bool

    Description:Flag to average the current rate with the rate of the previous time step

  • scalar-1Scalar multiplied against rate

    Default:-1

    C++ Type:double

    Description:Scalar multiplied against rate

  • blockThe list of block ids (SubdomainID) that this object will be applied

    C++ Type:std::vector

    Description:The list of block ids (SubdomainID) that this object will be applied

  • temperaturetemperature variable

    C++ Type:std::vector

    Description:temperature variable

Optional Parameters

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Description:Set the enabled status of the MooseObject.

  • save_inThe name of auxiliary variables to save this Kernel's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)

    C++ Type:std::vector

    Description:The name of auxiliary variables to save this Kernel's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)

  • 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.

  • 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.

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Description:The seed for the master random number generator

  • diag_save_inThe name of auxiliary variables to save this Kernel's diagonal Jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)

    C++ Type:std::vector

    Description:The name of auxiliary variables to save this Kernel's diagonal Jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Description:Determines whether this object is calculated using an implicit or explicit form

Advanced Parameters

  • vector_tagsnontimeThe tag for the vectors this Kernel should fill

    Default:nontime

    C++ Type:MultiMooseEnum

    Description:The tag for the vectors this Kernel should fill

  • extra_vector_tagsThe extra tags for the vectors this Kernel should fill

    C++ Type:std::vector

    Description:The extra tags for the vectors this Kernel should fill

  • matrix_tagssystemThe tag for the matrices this Kernel should fill

    Default:system

    C++ Type:MultiMooseEnum

    Description:The tag for the matrices this Kernel should fill

  • extra_matrix_tagsThe extra tags for the matrices this Kernel should fill

    C++ Type:std::vector

    Description:The extra tags for the matrices this Kernel should fill

Tagging Parameters

Input Files