cl_GT_HeatPoly.hpp

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/*
 * BELFEM -- The Berkeley Lab Finite Element Framework
 * Copyright (c) 2026, The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory (subject to receipt of any required
 * approvals from the U.S. Dept. of Energy).  All rights reserved.
 *
 * Developers: Christian Messe, Gregory Giard
 *
 * See the top-level LICENSE file for the complete license and disclaimer.
 */
 
#ifndef BELFEM_CL_GT_THERMOPOLY_HPP
#define BELFEM_CL_GT_THERMOPOLY_HPP
 
#include "typedefs.hpp"
#include "cl_Vector.hpp"
 
namespace belfem
{
    namespace gastables
    {
        class HeatPoly
        {
//------------------------------------------------------------------------------
        protected:
//------------------------------------------------------------------------------
            // minimum temperature of this poly
            real mTmin;
 
            // maximum temperature
            real mTmax;
 
            // offset for enthalpy
            real mEnthalpyConstant;
 
            // offset for entropy
            real mEntropyConstant;
 
            // coefficients
            const Vector <real> mCoefficients;
 
 
//------------------------------------------------------------------------------
        public:
//------------------------------------------------------------------------------
 
            HeatPoly(
                    const real aTmin,
                    const real aTmax,
                    const real aEnthalpyConstant,
                    const real aEntropyConstant,
                    const Vector <real> & aCoefficients );
 
//------------------------------------------------------------------------------
 
            virtual ~HeatPoly() = default;
 
//------------------------------------------------------------------------------
 
            virtual real
            Cp( const real T ) const;
 
//------------------------------------------------------------------------------
 
            virtual real
            H( const real T ) const;
 
//------------------------------------------------------------------------------
 
            virtual real
            S( const real T ) const;
 
//------------------------------------------------------------------------------
 
            virtual real
            dSdT( const real T ) const;
 
//------------------------------------------------------------------------------
 
            virtual real
            dCpdT( const real T ) const;
 
//------------------------------------------------------------------------------
 
            virtual real
            d2CpdT2( const real T ) const;
 
//------------------------------------------------------------------------------
 
            inline const real &
            T_min() const;
 
//------------------------------------------------------------------------------
 
            inline const real &
            T_max() const;
 
//------------------------------------------------------------------------------
 
            void
            set_T_min( const real aTmin );
 
//------------------------------------------------------------------------------
 
            void
            set_T_max( const real aTmax );
 
//------------------------------------------------------------------------------
 
            void
            set_enthalpy_constant( const real & aEnthalpyConstant );
 
//------------------------------------------------------------------------------
 
            void
            set_entropy_constant( const real & aEntropyConstant );
 
//------------------------------------------------------------------------------
 
            real
            enthalpy_constant() const;
//------------------------------------------------------------------------------
 
            real
            entropy_constant() const;
 
//------------------------------------------------------------------------------
        };
 
//------------------------------------------------------------------------------
 
        const real &
        HeatPoly::T_min() const
        {
            return mTmin;
        }
 
//------------------------------------------------------------------------------
 
        const real &
        HeatPoly::T_max() const
        {
            return mTmax;
        }
 
//------------------------------------------------------------------------------
 
 
    }
}
#endif //BELFEM_CL_GT_THERMOPOLY_HPP