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本文回顾了声速计算方程式的研究历史。不仅对目前普遍采用的声速方程式(如Wilson第二方程式)、最新研究成果(如Del Grosso的NRL方程式)侧重作了介绍,对其他一些研究成果也作了简要介绍。文中只列入了五个有代表性的方程式,其它的方程式均未列入。建立这些方程式所依据的实验室测量资料、推导方法、导出型式、计算精度、适用范围、其突出特点、国内外使用情况及其所存在的问题尽可能作了介绍。这里,根据资料分析,就国内通用声速计算方程式的选择及其它几个有关问题提出一些看法。
This article reviews the history of research on the sonic velocity equations. Not only the emphasis on the currently used sonic velocity equations (eg, Wilson’s second equation) but also on the latest research results (eg, Del Grosso’s NRL equation) is introduced, and some other research results are briefly introduced. The text contains only five representative equations, other equations are not included. The establishment of these equations based on laboratory measurement data, derivation methods, derived type, calculation accuracy, scope of application, its salient features, domestic and international use of the problems and their existing as possible introduction. Here, based on the analysis of data, some opinions on the selection of the general formula of sound velocity calculation in China and several other related issues are put forward.