MFEMMixedBilinearFormKernel.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

#ifdef MFEM_ENABLED

#pragma once
#include "MFEMKernel.h"

/*
Class to construct an MFEM mixed bilinear form integrator to apply to the equation system.
*/
class MFEMMixedBilinearFormKernel : public MFEMKernel
{
public:
  static InputParameters validParams();

  MFEMMixedBilinearFormKernel(const InputParameters & parameters);
  ~MFEMMixedBilinearFormKernel() = default;

  // Get name of the trial variable (gridfunction) the kernel acts on.
  // Defaults to the name of the test variable labelling the weak form.
  virtual const VariableName & getTrialVariableName() const override;

protected:
  // Name of the trial variable that the kernel is applied to.
  const VariableName _trial_var_name;
};

#endif