Homogenization of Temperature-Dependent Thermal Conductivity in Composite Materials, Journal of Thermophysics and Heat Transfer, Vol. More...

#include <HomogenizedThermalConductivity.h>

Inheritance diagram for HomogenizedThermalConductivity:

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Public Member Functions
	HomogenizedThermalConductivity (const InputParameters &parameters)

virtual void	initialize ()

virtual void	execute ()

virtual Real	getValue ()

virtual void	threadJoin (const UserObject &y)

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual Real	computeQpIntegral ()

Private Attributes
const VariableGradient &	_grad_temp_x

const VariableGradient &	_grad_temp_y

const VariableGradient &	_grad_temp_z

const unsigned int	_component

const MaterialProperty< Real > &	_diffusion_coefficient

Real	_volume

Real	_integral_value

const Real	_scale

Detailed Description

Homogenization of Temperature-Dependent Thermal Conductivity in Composite Materials, Journal of Thermophysics and Heat Transfer, Vol.

15, No. 1, January-March 2001.

Definition at line 19 of file HomogenizedThermalConductivity.h.

Constructor & Destructor Documentation

◆ HomogenizedThermalConductivity()

HomogenizedThermalConductivity::HomogenizedThermalConductivity ( const InputParameters & parameters )

Definition at line 39 of file HomogenizedThermalConductivity.C.

   : ElementAverageValue(parameters),
     _grad_temp_x(coupledGradient("temp_x")),
     _grad_temp_y(_subproblem.mesh().dimension() >= 2 ? coupledGradient("temp_y") : _grad_zero),
     _grad_temp_z(_subproblem.mesh().dimension() == 3 ? coupledGradient("temp_z") : _grad_zero),
     _component(getParam<unsigned int>("component")),
     _diffusion_coefficient(getMaterialProperty<Real>("diffusion_coefficient")),
     _scale(getParam<Real>("scale_factor"))
 {
 }

Member Function Documentation

◆ computeQpIntegral()

Real HomogenizedThermalConductivity::computeQpIntegral ( )

protectedvirtual

Definition at line 84 of file HomogenizedThermalConductivity.C.

 {
   Real value = 1.0;
  
   switch (_component)
   {
     case 0:
       value += _grad_temp_x[_qp](0);
       break;
  
     case 1:
       value += _grad_temp_y[_qp](1);
       break;
  
     case 2:
       value += _grad_temp_z[_qp](2);
       break;
  
     default:
       mooseError("Internal error.");
   }
  
   return _scale * _diffusion_coefficient[_qp] * value;
 }

◆ execute()

void HomogenizedThermalConductivity::execute ( )

virtual

Definition at line 58 of file HomogenizedThermalConductivity.C.

 {
   _integral_value += computeIntegral();
   _volume += _current_elem_volume;
 }

◆ getValue()

Real HomogenizedThermalConductivity::getValue ( )

virtual

Definition at line 65 of file HomogenizedThermalConductivity.C.

 {
   gatherSum(_integral_value);
   gatherSum(_volume);
  
   return (_integral_value / _volume);
 }

◆ initialize()

void HomogenizedThermalConductivity::initialize ( )

virtual

Definition at line 51 of file HomogenizedThermalConductivity.C.

 {
   _integral_value = 0.0;
   _volume = 0.0;
 }

◆ threadJoin()

void HomogenizedThermalConductivity::threadJoin ( const UserObject & y )

virtual

Definition at line 74 of file HomogenizedThermalConductivity.C.

 {
   const HomogenizedThermalConductivity & pps =
       dynamic_cast<const HomogenizedThermalConductivity &>(y);
  
   _integral_value += pps._integral_value;
   _volume += pps._volume;
 }

◆ validParams()

InputParameters HomogenizedThermalConductivity::validParams ( )

static

Definition at line 19 of file HomogenizedThermalConductivity.C.

 {
   InputParameters params = ElementAverageValue::validParams();
   params.addClassDescription(
       "Postprocessor for asymptotic expansion homogenization for thermal conductivity");
   params.addRequiredCoupledVar("temp_x", "solution in x");
   params.addCoupledVar("temp_y", "solution in y");
   params.addCoupledVar("temp_z", "solution in z");
   params.addRequiredRangeCheckedParam<unsigned int>(
       "component",
       "component < 3",
       "An integer corresponding to the direction this pp acts in (0 for x, 1 for y, 2 for z)");
   params.addParam<Real>("scale_factor", 1, "Scale factor");
   params.addParam<MaterialPropertyName>(
       "diffusion_coefficient",
       "thermal_conductivity",
       "Property name of the diffusivity (Default: thermal_conductivity)");
   return params;
 }