【摘要】 概述了国外水平管内油水两相流压降模型研究进展,介绍了均质模型、两层分离模型、三层分离模型、四层分离模型和双分散模型.给出了均质模型中常用的压降公式、分离模型的流体力学基本公式及三层分离模型和四层分离模型的物理模型,同时,给出了实验中得到的各种分离模型的应用边界.指出了一个好的模型应根据具体要求,既要尽可能使模型的求解简单,又要尽可能全面模拟油水流动中出现的流动形态.更多还原

【Abstract】 The pressure gradient model development of oil-water two phase flow in horizontal pipelines abroad is summarized.Homogeneous model,tow-layer segregated model,three-layer segregated model and four-layer segregated model are introduced.The pressure gradient equation for the homogeneous model,the basic fluid mechanical equations for every segregated models and the physics models for three-layer and four-layer model are given respectively.Meanwhile,the application limits of every segregated model are given according to experience.According to the related acquirements,a good model not only simplifies the solution to it as much as possible,but also fully simulates the flowing state of oil-water.更多还原