TricrystalTripleJunctionIC

construction:Undocumented Class

The TricrystalTripleJunctionIC has not been documented. The content listed below should be used as a starting point for documenting the class, which includes the typical automatic documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.

Tricrystal with a triple junction

Overview

Example Input File Syntax

Input Parameters

op_indexIndex for the current grain order parameter
C++ Type:unsigned int
Options:
Description:Index for the current grain order parameter
op_numNumber of grain order parameters
C++ Type:unsigned int
Options:
Description:Number of grain order parameters
variableThe variable this initial condition is supposed to provide values for.
C++ Type:VariableName
Options:
Description:The variable this initial condition is supposed to provide values for.

Required Parameters

blockThe list of block ids (SubdomainID) that this object will be applied
C++ Type:std::vector<SubdomainName>
Options:
Description:The list of block ids (SubdomainID) that this object will be applied
boundaryThe list of boundary IDs from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Options:
Description:The list of boundary IDs from the mesh where this boundary condition applies
junctionThe point where the triple junction is located. Default is the center of the mesh
C++ Type:libMesh::Point
Options:
Description:The point where the triple junction is located. Default is the center of the mesh
theta1135Angle of first grain at triple junction in degrees
Default:135
C++ Type:double
Options:
Description:Angle of first grain at triple junction in degrees
theta2135Angle of second grain at triple junction in degrees
Default:135
C++ Type:double
Options:
Description:Angle of second grain at triple junction in degrees

Optional Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.
ignore_uo_dependencyFalseWhen set to true, a UserObject retrieved by this IC will not be executed before the this IC
Default:False
C++ Type:bool
Options:
Description:When set to true, a UserObject retrieved by this IC will not be executed before the this IC

Advanced Parameters

Input Files

(modules/phase_field/test/tests/initial_conditions/TricrystalTripleJunctionIC.i)

(modules/phase_field/test/tests/initial_conditions/TricrystalTripleJunctionIC.i)

# This simulation tests the TricrystalTripleJunctionIC

[Mesh]
  # Mesh block. Meshes can be read in or automatically generated.
  type = GeneratedMesh
  dim = 2 # Problem dimension
  nx = 11 # Number of elements in the x direction
  ny = 11 # Number of elements in the y direction
  xmax = 1001 # Maximum x-coordinate of mesh
  xmin = 0 # Minimum x-coordinate of mesh
  ymax = 1001 # Maximum y-coordinate of mesh
  ymin = 0 # Minimum y-coordinate of mesh
  elem_type = QUAD4 # Type of elements used in the mesh
  uniform_refine = 3
[]

[GlobalParams]
  # Parameters used by several kernels that are defined globally to simplify input file
  op_num = 3 # Number of order parameters used
  var_name_base = gr # base name of grains
  v = 'gr0 gr1 gr2' # Names of the grains
  theta1 = 135 # Angle the first grain makes at the triple junction
  theta2 = 100 # Angle the second grain makes at the triple junction
  length_scale = 1.0e-9 # Length scale in nm
  time_scale = 1.0e-9 # Time scale in ns
[]

[Variables]
  [./gr0]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
       type = TricrystalTripleJunctionIC
       op_index = 1
    [../]
  [../]

  [./gr1]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
       type = TricrystalTripleJunctionIC
       op_index = 2
    [../]
  [../]

  [./gr2]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
       type = TricrystalTripleJunctionIC
       op_index = 3
    [../]
  [../]
[]

[AuxVariables]
  [./bnds]
    # Variable used to visualize the grain boundaries in the simulation
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  # Kernels block where the kernels defining the residual equations are set up
  [./PolycrystalKernel]
    # Custom action creating all necessary kernels for grain growth.  All input parameters are up in GlobalParams
  [../]
[]

[AuxKernels]
  # AuxKernel block, defining the equations used to calculate the auxvars
  [./bnds_aux]
    # AuxKernel that calculates the GB term
    type = BndsCalcAux
    variable = bnds
    execute_on = 'initial timestep_end'
  [../]
[]

[Materials]
  [./material]
    # Material properties
    type = GBEvolution
    T = 450 # Constant temperature of the simulation (for mobility calculation)
    wGB = 14 # Width of the diffuse GB
    GBmob0 = 2.5e-6 #m^4(Js) for copper from Schoenfelder1997
    Q = 0.23 #eV for copper from Schoenfelder1997
    GBenergy = 0.708 #J/m^2 from Schoenfelder1997
  [../]
[]

[Postprocessors]
  # Scalar postprocessors
  [./grain_tracker]
    type = FauxGrainTracker
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
[]

[Outputs]
  exodus = true # Outputs to the Exodus file format
  execute_on = 'final'
[]

[Problem]
  solve = false
[]

Overview
Example Input File Syntax
Input Parameters
Input Files

Install MOOSE

New Users

Examples and Tutorials

Application Usage

Physics and Syntax

Application Development

Framework Development

MOOSEDocs

Infrastructure

Questions

Information and Tools

INL Applications and Remote Access