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 "libmesh/ignore_warnings.h"
      15             : #include "mfem/miniapps/common/pfem_extras.hpp"
      16             : #include "libmesh/restore_warnings.h"
      17             : #include "MFEMAuxKernel.h"
      18             : 
      19             : /**
      20             :  * Class to set an H(curl) auxvariable to be the gradient of a H1 scalar variable.
      21             :  */
      22             : class MFEMGradAux : public MFEMAuxKernel
      23             : {
      24             : public:
      25             :   static InputParameters validParams();
      26             : 
      27             :   MFEMGradAux(const InputParameters & parameters);
      28             : 
      29         218 :   virtual ~MFEMGradAux() = default;
      30             : 
      31             :   /// Computes the auxvariable.
      32             :   virtual void execute() override;
      33             : 
      34             :   // Updates grad operator.
      35             :   virtual void update() override;
      36             : 
      37             : protected:
      38             :   /// Name of source MFEMVariable to take the gradient of.
      39             :   const VariableName _source_var_name;
      40             :   /// Reference to source gridfunction.
      41             :   const mfem::ParGridFunction & _source_var;
      42             :   /// Scalar factor to multiply the result by.
      43             :   const mfem::real_t _scale_factor;
      44             :   /// Grad operator
      45             :   mfem::common::ParDiscreteGradOperator _grad;
      46             : };
      47             : 
      48             : #endif