WaterViscosityIAPWS.h

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#pragma once
 
#include <string>
 
#include "MaterialLib/Fluid/FluidProperty.h"
 
namespace MaterialLib
{
namespace Fluid
{
class WaterViscosityIAPWS final : public FluidProperty
{
public:
    WaterViscosityIAPWS() = default;
 
    std::string getName() const override
    {
        return "IAPWS temperature-density dependent viscosity model";
    }
 
    double getValue(const ArrayType& var_vals) const override;
 
    double getdValue(const ArrayType& var_vals,
                     const PropertyVariableType var_type) const override;
 
private:
    const double _ref_T = 647.096;  
    const double _ref_rho = 322.0;  
    const double _ref_mu = 1.0e-6;  
 
    // Coefficients Hi and Hij are given in two static arrays in the cpp file.
};
 
}  // namespace Fluid
}  // namespace MaterialLib