LinearFVRZViscousSource.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 "LinearFVElementalKernel.h"
#include <array>

class LinearFVRZViscousSource : public LinearFVElementalKernel
{
public:
  static InputParameters validParams();

  LinearFVRZViscousSource(const InputParameters & params);

protected:
  Real computeMatrixContribution() override;
  Real computeRightHandSideContribution() override;

private:
  const Moose::Functor<Real> & _mu;
  const unsigned int _component;
  const unsigned int _rz_radial_coord;
  const unsigned int _dim;
  const bool _use_deviatoric_terms;
  const Moose::CoordinateSystemType _coord_type;
  const Real _stress_multiplier;

  std::array<MooseLinearVariableFVReal *, 2> _velocity_vars;

  const MooseLinearVariableFVReal & velocityVar(unsigned int dir) const;
};