MassDiffusionBaseGasMixDGKernel.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 "ADDGKernel.h"

class MassDiffusionBaseGasMixDGKernel : public ADDGKernel
{
public:
  static InputParameters validParams();

  MassDiffusionBaseGasMixDGKernel(const InputParameters & parameters);

protected:
  virtual ADReal computeQpResidual(Moose::DGResidualType type) override;

  virtual ADReal computeQpFlux() const = 0;

  void computePositionChanges(Real & dx, Real & dx_side) const;

  ADReal
  linearlyInterpolate(const ADReal & y_elem, const ADReal & y_neig, Real dx, Real dx_side) const;

  ADReal computeGradient(const ADReal & y_elem, const ADReal & y_neig, Real dx) const;

  const ADMaterialProperty<Real> & _rho_elem;
  const ADMaterialProperty<Real> & _rho_neig;
  const ADMaterialProperty<Real> & _D_elem;
  const ADMaterialProperty<Real> & _D_neig;
  const ADMaterialProperty<Real> & _mass_fraction_elem;
  const ADMaterialProperty<Real> & _mass_fraction_neig;

  const ADVariableValue & _A_linear;
  const MaterialProperty<RealVectorValue> & _dir;
};