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Thermodynamic properties of water and steam
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 IAPWS_ IF97(FUN,IN1,IN2) is 104 functions of water properties and derivatives, based on the International Association on Properties of Water and Steam ( http://www.iapws.org ). Thermodynamic, hydrodynamic and non-linear modeling often requires thermodynamic derivatives, therefore IAPWS_ IF97 can calculate most property derivates as functions of pressure and enthalpy, e.g.: dT/dp_ ph, cp_ ph, dv/dp_ ph and dv/dh_ ph. Since modeling often involves multiple dimensions that are discretized or meshed to form a set of either finite-difference or finite-element equations, IAPWS_ IF97 is vectorized even across regions (subcooled/compressed-liquid, saturated, superheated and supercritical)
烟云湘灵
2018-03-13
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