DGKernel.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* 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 "DGKernelBase.h"
 
class DGKernel : public DGKernelBase, public NeighborMooseVariableInterface<Real>
{
public:
  static InputParameters validParams();
 
  DGKernel(const InputParameters & parameters);
 
  virtual const MooseVariableFEBase & variable() const override { return _var; }
 
  virtual void computeElemNeighResidual(Moose::DGResidualType type) override;
 
  virtual void computeElemNeighJacobian(Moose::DGJacobianType type) override;
 
  virtual void computeOffDiagElemNeighJacobian(Moose::DGJacobianType type,
                                               const MooseVariableFEBase & jvar) override;
 
protected:
  virtual Real computeQpResidual(Moose::DGResidualType type) = 0;
 
  virtual Real computeQpJacobian(Moose::DGJacobianType type) = 0;
 
  virtual Real computeQpOffDiagJacobian(Moose::DGJacobianType type, unsigned int jvar);
 
  virtual void precalculateQpResidual(Moose::DGResidualType /*type*/) {}
 
  virtual void precalculateQpJacobian(Moose::DGJacobianType /*type*/) {}
 
  virtual void precalculateQpOffDiagJacobian(Moose::DGJacobianType /*type*/,
                                             const MooseVariableFEBase & /*jvar*/)
  {
  }
 
  MooseVariable & _var;
  const VariableValue & _u;
  const VariableGradient & _grad_u;
  const VariablePhiValue & _phi;
  const VariablePhiGradient & _grad_phi;
  const VariableTestValue & _test;
  const VariableTestGradient & _grad_test;
  const VariablePhiValue & _phi_neighbor;
  const VariablePhiGradient & _grad_phi_neighbor;
  const VariableTestValue & _test_neighbor;
  const VariableTestGradient & _grad_test_neighbor;
  const VariableValue & _u_neighbor;
  const VariableGradient & _grad_u_neighbor;
};