NSMomentumPressureWeakStagnationBC.C

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//* This file is part of the MOOSE framework
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//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#include "NSMomentumPressureWeakStagnationBC.h"
 
registerMooseObject("NavierStokesApp", NSMomentumPressureWeakStagnationBC);
 
template <>
InputParameters
validParams<NSMomentumPressureWeakStagnationBC>()
{
  InputParameters params = validParams<NSWeakStagnationBaseBC>();
  params.addClassDescription("This class implements the pressure term of the momentum equation "
                             "boundary integral for use in weak stagnation boundary conditions.");
  params.addRequiredParam<unsigned int>(
      "component", "(0,1,2) = (x,y,z) for which momentum component this BC is applied to");
  return params;
}
 
NSMomentumPressureWeakStagnationBC::NSMomentumPressureWeakStagnationBC(
    const InputParameters & parameters)
  : NSWeakStagnationBaseBC(parameters), _component(getParam<unsigned int>("component"))
{
}
 
Real
NSMomentumPressureWeakStagnationBC::computeQpResidual()
{
  // Compute stagnation values
  Real T_s = 0.0, p_s = 0.0, rho_s = 0.0;
  staticValues(T_s, p_s, rho_s);
 
  // (p_s * n_k) * phi_i
  return (p_s * _normals[_qp](_component)) * _test[_i][_qp];
}
 
Real
NSMomentumPressureWeakStagnationBC::computeQpJacobian()
{
  // TODO
  return 0.0;
}
 
Real
NSMomentumPressureWeakStagnationBC::computeQpOffDiagJacobian(unsigned /*jvar*/)
{
  // TODO
  return 0.0;
}