FVConstantIC

Sets a constant field value.

Sets a constant initial condition described by parameter "value". It can be restricted to particular blocks using the "block" parameter.

Example input syntax

In this example, a blockwise constant initial condition is set for variable u. Block 1 and 2 are set differently by two FVConstantIC objects.

[FVICs]
  [ic_u_1]
    type = FVConstantIC
    variable = u
    value = 6.25
    block = '1'
  []
  [ic_u_2]
    type = FVConstantIC
    variable = u
    value = 9.99
    block = '2'
  []
[]

Input Parameters

valueThe value to be set in IC
C++ Type:double
Controllable:No
Description:The value to be set in IC
variableThe variable this initial condition is supposed to provide values for.
C++ Type:VariableName
Controllable:No
Description:The variable this initial condition is supposed to provide values for.

Required Parameters

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

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:No
Description:Set the enabled status of the MooseObject.

Advanced Parameters

(moose/test/tests/fvics/constant_ic/subdomain_constant_ic.i)

[Mesh]
  file = sq-2blk.e
  uniform_refine = 1
[]

[Variables]
  [u]
    type = MooseVariableFVReal
  []
[]

[FVICs]
  [ic_u_1]
    type = FVConstantIC
    variable = u
    value = 6.25
    block = '1'
  []
  [ic_u_2]
    type = FVConstantIC
    variable = u
    value = 9.99
    block = '2'
  []
[]

[Executioner]
  type = Steady
[]

[Problem]
  solve = false
[]

[Outputs]
  exodus = true
[]