GradDiv.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 "ADKernel.h"
 
class GradDiv : public ADKernel
{
public:
  static InputParameters validParams();
 
  GradDiv(const InputParameters & parameters);
 
  virtual void computeResidual() override;
 
protected:
  virtual ADReal computeQpResidual() override;
 
  const ADVariableGradient & _grad_vel_x;
  const ADVariableGradient & _grad_vel_y;
  const unsigned short _comp;
  const bool _matrix_only;
  const Real _gamma;
};