NSPressureNeumannBC.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* 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
 
#pragma once
 
#include "NSIntegratedBC.h"
#include "NSPressureDerivs.h"
 
// Forward Declarations
class NSPressureNeumannBC;
 
template <>
InputParameters validParams<NSPressureNeumannBC>();
 
class NSPressureNeumannBC : public NSIntegratedBC
{
public:
  NSPressureNeumannBC(const InputParameters & parameters);
 
  virtual ~NSPressureNeumannBC() {}
 
protected:
  virtual Real computeQpResidual();
  virtual Real computeQpJacobian();
  virtual Real computeQpOffDiagJacobian(unsigned jvar);
 
  // Coupled vars
  const VariableValue & _pressure;
 
  // Required parameters
  unsigned _component;
 
  // An object for computing pressure derivatives.
  // Constructed via a reference to ourself
  NSPressureDerivs<NSPressureNeumannBC> _pressure_derivs;
 
  // Declare ourselves friend to the helper class.
  template <class U>
  friend class NSPressureDerivs;
 
private:
  // Computes the Jacobian value for this term for variable 'm'
  // in the canonical ordering.
  Real computeJacobianHelper(unsigned m);
};