RelativePermeability.h

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#pragma once
 
#include <string>
#include <limits>
 
namespace MaterialLib
{
namespace PorousMedium
{
class RelativePermeability
{
public:
    RelativePermeability(const double Sr, const double Smax)
        : _saturation_r(Sr), _saturation_max(Smax)
    {
    }
 
    virtual ~RelativePermeability() = default;
 
    virtual std::string getName() const = 0;
 
    virtual double getValue(const double saturation) const = 0;
 
    virtual double getdValue(const double saturation) const = 0;
 
protected:
    const double _minor_offset = std::numeric_limits<double>::epsilon();
 
    const double _saturation_r;    
    const double _saturation_max;  
};
 
}  // namespace PorousMedium
}  // namespace MaterialLib