DGLowerDKernel.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 "DGKernel.h"
class DGLowerDKernel : public DGKernel
{
public:
  static InputParameters validParams();

  DGLowerDKernel(const InputParameters & parameters);

  const MooseVariableFEBase & variable() const override final { return _var; }

  const MooseVariableFEBase & lowerDVariable() const { return _lowerd_var; }

  virtual void computeResidual() override;

  virtual void computeJacobian() override;

  virtual void computeOffDiagJacobian(unsigned int jvar) override;

protected:
  virtual void computeLowerDResidual();

  virtual Real computeLowerDQpResidual() = 0;

  virtual void computeLowerDJacobian(Moose::ConstraintJacobianType jacobian_type);

  virtual Real computeLowerDQpJacobian(Moose::ConstraintJacobianType jacobian_type) = 0;

  virtual void computeOffDiagLowerDJacobian(Moose::ConstraintJacobianType type,
                                            const MooseVariableFEBase & jvar);

  virtual Real computeLowerDQpOffDiagJacobian(Moose::ConstraintJacobianType /*type*/,
                                              const MooseVariableFEBase & /*jvar*/)
  {
    return 0;
  }

  virtual void initLowerDQpResidual() {}

  virtual void initLowerDQpJacobian(Moose::ConstraintJacobianType) {}

  virtual void initLowerDQpOffDiagJacobian(Moose::ConstraintJacobianType,
                                           const MooseVariableFEBase &)
  {
  }

  const MooseVariable & _lowerd_var;
  const VariableValue & _lambda;
  const VariablePhiValue & _phi_lambda;
  const VariableTestValue & _test_lambda;
};