Pressure Class Reference

Pressure applies a pressure on a given boundary in the direction defined by component. More...

#include <Pressure.h>

Inheritance diagram for Pressure:

Public Member Functions
	Pressure (const InputParameters &parameters)

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual Real	computeQpResidual ()

Protected Attributes
const int	_component
const Real	_factor
const Function *const	_function
const PostprocessorValue *const	_postprocessor
const Real	_alpha
	_alpha Parameter for HHT time integration scheme More...

Detailed Description

Pressure applies a pressure on a given boundary in the direction defined by component.

Definition at line 23 of file Pressure.h.

Constructor & Destructor Documentation

Pressure()

Pressure::Pressure

(

const InputParameters &

parameters

)

Definition at line 33 of file Pressure.C.

  : IntegratedBC(parameters),
    _component(getParam<unsigned int>("component")),
    _factor(getParam<Real>("factor")),
    _function(isParamValid("function") ? &getFunction("function") : NULL),
    _postprocessor(isParamValid("postprocessor") ? &getPostprocessorValue("postprocessor") : NULL),
    _alpha(getParam<Real>("alpha"))
{
  if (_component > 2)
    mooseError("Invalid component given for ", name(), ": ", _component, ".\n");
}

Member Function Documentation

computeQpResidual()

Real Pressure::computeQpResidual ( )

protectedvirtual

Definition at line 46 of file Pressure.C.

{
  Real factor = _factor;
 
  if (_function)
    factor *= _function->value(_t + _alpha * _dt, _q_point[_qp]);
 
  if (_postprocessor)
    factor *= *_postprocessor;
 
  return factor * (_normals[_qp](_component) * _test[_i][_qp]);
}

validParams()

InputParameters Pressure::validParams ( )

static

Definition at line 19 of file Pressure.C.

{
  InputParameters params = IntegratedBC::validParams();
  params.addClassDescription("Applies a pressure on a given boundary in a given direction");
  params.addRequiredParam<unsigned int>("component", "The component for the pressure");
  params.addParam<Real>("factor", 1.0, "The magnitude to use in computing the pressure");
  params.addParam<FunctionName>("function", "The function that describes the pressure");
  params.addParam<PostprocessorName>("postprocessor",
                                     "Postprocessor that will supply the pressure value");
  params.addParam<Real>("alpha", 0.0, "alpha parameter required for HHT time integration scheme");
  params.set<bool>("use_displaced_mesh") = true;
  return params;
}

Member Data Documentation

_alpha

const Real Pressure::_alpha

protected

_alpha Parameter for HHT time integration scheme

Definition at line 42 of file Pressure.h.

Referenced by computeQpResidual().

_component

const int Pressure::_component

protected

Definition at line 33 of file Pressure.h.

Referenced by computeQpResidual(), and Pressure().

_factor

const Real Pressure::_factor

protected

Definition at line 35 of file Pressure.h.

Referenced by computeQpResidual().

_function

const Function* const Pressure::_function

protected

Definition at line 37 of file Pressure.h.

Referenced by computeQpResidual().

_postprocessor

const PostprocessorValue* const Pressure::_postprocessor

protected

Definition at line 39 of file Pressure.h.

Referenced by computeQpResidual().

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The documentation for this class was generated from the following files:

• tensor_mechanics/include/bcs/Pressure.h
• tensor_mechanics/src/bcs/Pressure.C