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 MFEM_ENABLED
      11             : 
      12             : #pragma once
      13             : #include "libmesh/ignore_warnings.h"
      14             : #include "mfem/miniapps/common/pfem_extras.hpp"
      15             : #include "libmesh/restore_warnings.h"
      16             : #include "MFEMAuxKernel.h"
      17             : 
      18             : /*
      19             : Class to set an H(curl) auxvariable to be the gradient of a H1 scalar variable.
      20             : */
      21             : class MFEMGradAux : public MFEMAuxKernel
      22             : {
      23             : public:
      24             :   static InputParameters validParams();
      25             : 
      26             :   MFEMGradAux(const InputParameters & parameters);
      27             : 
      28          48 :   virtual ~MFEMGradAux() = default;
      29             : 
      30             :   // Computes the auxvariable.
      31             :   virtual void execute() override;
      32             : 
      33             : protected:
      34             :   // Name of source MFEMVariable to take the gradient of.
      35             :   const VariableName _source_var_name;
      36             :   // Reference to source gridfunction.
      37             :   const mfem::ParGridFunction & _source_var;
      38             :   // Scalar factor to multiply the result by.
      39             :   const mfem::real_t _scale_factor;
      40             :   // Grad operator
      41             :   mfem::common::ParDiscreteGradOperator _grad;
      42             : };
      43             : 
      44             : #endif