输水管道系统空穴特性计算

Calculation of Cavitation Characteristics in Water Transmission System

在引黄入晋工程联接段水工模型试验研究基础上 ,计算了有空穴存在时输水管道系统的瞬变流动特性 ,得出了空穴体积和压力变化规律 ,同时提出了空穴存在条件和确定边界的方法。为类似的研究计算和防止管内汽蚀提供了一个范例。

On the basis of the research on the hydraulic model experiment of connecting section used in water delivery engineering from Yellow River to Shanxi province,the transient fluid characteristics of the water pipe system with cavitations were calculated,the principles of cavitation volume and pressure change were obtained.Furthermore,the condition of cavitation existence and the method to determine the boundary were put forward.This thesis offers a sample to the analogy calculation and prevention from stream corrosion in pipe system.