Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "INSStressComponentAux.h"
      11             : #include "MooseMesh.h"
      12             : #include "NS.h"
      13             : 
      14             : registerMooseObject("NavierStokesApp", INSStressComponentAux);
      15             : 
      16             : InputParameters
      17           0 : INSStressComponentAux::validParams()
      18             : {
      19           0 :   InputParameters params = AuxKernel::validParams();
      20             : 
      21           0 :   params.addClassDescription("This class computes the stress component based on "
      22             :                              "pressure and velocity for incompressible Navier-Stokes");
      23           0 :   params.addCoupledVar("velocity", "The velocity component");
      24           0 :   params.addCoupledVar(NS::pressure, 0, "The pressure");
      25           0 :   params.addRangeCheckedParam<unsigned int>("comp", 0, "0<=comp<=2", "The component");
      26           0 :   params.addParam<MaterialPropertyName>("mu_name", "mu", "The viscosity");
      27             : 
      28           0 :   return params;
      29           0 : }
      30             : 
      31           0 : INSStressComponentAux::INSStressComponentAux(const InputParameters & parameters)
      32             :   : AuxKernel(parameters),
      33           0 :     _grad_velocity(isCoupled("velocity") ? coupledGradient("velocity") : _grad_zero),
      34           0 :     _pressure(coupledValue(NS::pressure)),
      35           0 :     _comp(getParam<unsigned>("comp")),
      36           0 :     _mu(getMaterialProperty<Real>("mu_name"))
      37             : {
      38           0 : }
      39             : 
      40             : Real
      41           0 : INSStressComponentAux::computeValue()
      42             : {
      43           0 :   return _pressure[_qp] - _mu[_qp] * _grad_velocity[_qp](_comp);
      44             : }