摘要
迄今,已建立众多形式的多相流动基本方程组,可归结为两大类:多流体模型和混合物模型。由于这些模型得到的方程组在形式上存在差异而引起许多争论。其中,关于各相之间的相互作用力和压力在各相之间的分配问题的讨论由来已久;新近又提出了关于随体导数的讨论。本文主要讨论多相流动基本方程应遵循的基本原则,即相容性原则、物质坐标不变性和物质客观性原则,其结果可以沟通这两大类模型的统一描述。
So far, many kinds of fundamental equations of multiphase flow are established. We can sum up as two kinds of model, one is multi-fluid model and the other single-fluid model. There are much arguments to arise from formal differentia of obtaining equations. Among others, interacting force between phases and distribution of pressure between phases are discussed for a long time More recently, the discussion of the substantial de ivative in multiphase flow is presented. This paper discusses the necessary principles for establishing fundamental equtions of multiphase flow, namely principles of consistency, invariance of material coordinates and material indifference. The results bring two models within consistent description.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1990年第3期67-72,共6页
Chinese Journal of Hydrodynamics
关键词
多相流
基本方程
随体导数
相容性
multiphase flow, substantial derivative, consistency, invariance of material coordinates, material indifference.
