ExodusTimeSequenceStepper

under construction:Undocumented Class

The ExodusTimeSequenceStepper 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.


# ExodusTimeSequenceStepper

!syntax description /Executioner/TimeStepper/ExodusTimeSequenceStepper

## Overview

!! Replace these lines with information regarding the ExodusTimeSequenceStepper object.

## Example Input File Syntax

!! Describe and include an example of how to use the ExodusTimeSequenceStepper object.

!syntax parameters /Executioner/TimeStepper/ExodusTimeSequenceStepper

!syntax inputs /Executioner/TimeStepper/ExodusTimeSequenceStepper

!syntax children /Executioner/TimeStepper/ExodusTimeSequenceStepper

Solves the Transient problem at a sequence of time points taken from a specified exodus file.

Input Parameters

meshThe name of the mesh file to extract the time sequence from (must be an exodusII file).
C++ Type:MeshFileName
Options:
Description:The name of the mesh file to extract the time sequence from (must be an exodusII file).

Required Parameters

cutback_factor_at_failure0.5Factor to apply to timestep if it a time step fails to convergence.
Default:0.5
C++ Type:double
Options:
Description:Factor to apply to timestep if it a time step fails to convergence.
reset_dtFalseUse when restarting a calculation to force a change in dt.
Default:False
C++ Type:bool
Options:
Description:Use when restarting a calculation to force a change in dt.

Optional Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
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.

Advanced Parameters

Input Files

test/tests/time_steppers/timesequence_stepper/exodustimesequence.i

test/tests/time_steppers/timesequence_stepper/exodustimesequence.i

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    value = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    value = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  end_time = 4.0
  [./TimeStepper]
    type = ExodusTimeSequenceStepper
    mesh = timesequence_no_start_time.e
  [../]
[]

[Outputs]
  exodus = true
[]

Input Parameters
Input Files

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