Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #ifdef MOOSE_MFEM_ENABLED
      11             : 
      12             : #pragma once
      13             : 
      14             : #include "MFEMKernel.h"
      15             : 
      16             : /**
      17             :  * Class to construct an MFEM mixed bilinear form integrator to apply to the equation system.
      18             :  */
      19             : class MFEMMixedBilinearFormKernel : public MFEMKernel
      20             : {
      21             : public:
      22             :   static InputParameters validParams();
      23             : 
      24             :   MFEMMixedBilinearFormKernel(const InputParameters & parameters);
      25         124 :   ~MFEMMixedBilinearFormKernel() = default;
      26             : 
      27             :   /// Get name of the trial variable (gridfunction) the kernel acts on.
      28             :   /// Defaults to the name of the test variable labelling the weak form.
      29             :   virtual const VariableName & getTrialVariableName() const override;
      30             : 
      31             :   /// Create MFEM mixed bilinear form integrator. Ownership managed by the caller.
      32           0 :   virtual mfem::BilinearFormIntegrator * createMBFIntegrator() { return nullptr; }
      33             : 
      34             :   /// We override this to optionally transpose the mixed bilinear form integrator.
      35             :   virtual mfem::BilinearFormIntegrator * createBFIntegrator() override;
      36             : 
      37             : protected:
      38             :   /// Name of the trial variable that the kernel is applied to.
      39             :   const VariableName _trial_var_name;
      40             :   /// Bool controlling whether to add the transpose of the integrator to the system
      41             :   bool _transpose;
      42             : };
      43             : 
      44             : #endif