DashpotBC.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 "IntegratedBC.h"

// Forward Declarations

class DashpotBC : public IntegratedBC
{
public:
  static InputParameters validParams();

  DashpotBC(const InputParameters & parameters);

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

private:
  unsigned int _component;
  Real _coefficient;

  unsigned int _disp_x_var;
  unsigned int _disp_y_var;
  unsigned int _disp_z_var;

  const VariableValue & _disp_x_dot;
  const VariableValue & _disp_y_dot;
  const VariableValue & _disp_z_dot;
};