流体动量方程在曲线坐标系中的守恒型(下)  

THE CONSERVATION FORMS OF FLUID MOMENTUM EQUATION IN CURVILINEAR COORDINATE SYSTEMS (Ⅱ)

作　　者：陈宏冀[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《应用基础与工程科学学报》1994年第Z1期256-266,共11页Journal of Basic Science and Engineering

摘　　要：将本文上半部分中提出的物理概念清楚的、严格的推导曲线坐标系中守恒型动量方程的基本方法进一步推广应用到相对坐标、转动坐标、二维流动、定常流动等领域,充分显示了该方法的普遍适用性,得出了一系列真正保持守恒性的微分动量方程;另一方面,指出了某些惯用的弱守恒型方程妨害守恒性的保持。The distinct-physical-concepted, rigorous basic method to deduce the conservation form momentum equations in curvilinear coordinate systems presented in Part I of this paper is further extended and applied to the areas of relative coordinates, rotatinal coordinates, two dimensional flow,steady flow,etc. ,and a series of realy-conservation-preserving differential momentum equations are obtained accompanied with the fully demonstration of the universal suitability of this basic deduction method. On the other hand,it is pointed out that some usually used weak conservation form equations hinder the preservation of conservation.

关 键 词：曲线坐标系 相对流动方程 二维流动方程 定常流动方程 守恒型动量方程 

分 类 号：O302[理学—力学]