RichardsRelPerm.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 "GeneralUserObject.h"

class RichardsRelPerm : public GeneralUserObject
{
public:
  static InputParameters validParams();

  RichardsRelPerm(const InputParameters & parameters);

  void initialize();
  void execute();
  void finalize();

  virtual Real relperm(Real seff) const = 0;

  virtual Real drelperm(Real seff) const = 0;

  virtual Real d2relperm(Real seff) const = 0;
};