PressureGradient.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 "Kernel.h"

class PressureGradient : public Kernel
{
public:
  static InputParameters validParams();

  PressureGradient(const InputParameters & parameters);

protected:
  virtual Real computeQpResidual() override;
  virtual Real computeQpJacobian() override;
  virtual Real computeQpOffDiagJacobian(unsigned int jvar) override;

  const bool _integrate_p_by_parts;

  unsigned int _component;

  const VariableValue & _pressure;

  const VariableGradient & _grad_pressure;

  const unsigned int _pressure_id;

  const Moose::CoordinateSystemType & _coord_sys;

  const unsigned int _rz_radial_coord;
};