水和水蒸汽热力性质的计算模型——IAPWS-IF97

摘要

Compared with traditional calculation model IFC-67,IAPWS-IF97,as a new calculation model for thermodynamic properties of water and steam,is greatly improved in terms of computing speed and accuracy.Since the advent of IAPWS-IF97,it was widely used in engineering practice and numerical calculation.This paper will introduce the reason of developing IAPWS-IF97 from the shortcomings of IFC-67 and give a comprehensive introduction to the calculation principle and model of IAPWS-IF97.%IAPWS-IF97作为新的一种计算水和水蒸汽热力性质的计算模型,与传统的计算模型IFC-67相比,无论在计算速度和精确性方面都有了很大的改善,因而从IAPWS-IF97问世以来,迅速在工程实践和数值计算等中得到了广泛的运用。本文将从论述IFC-67的不足出发,介绍为什么要发展IAPWS-IF97,并比较详细的介绍了IAPWS-IF97的计算原理和计算模型。