水锤数值计算的全特性曲线法  

Full Characteristic Curve Method for Numerical Calculation of Water Hammer

作　　者：郑铭[1] 陈池[2] 袁寿其[3] 

机构地区：[1]江苏理工大学生物与环境工程学院,镇江市212013 [2]上海大学应用数学与力学研究所,上海市200072 [3]江苏理工大学流体机械工程技术中心

出　　处：《农业机械学报》2000年第5期41-44,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：教育部留学回国人员研究基金资助项目

摘　　要：采用麦切尔提出的无因次全特性曲线变换图形 ,按照弹性水柱理论提供的瞬变流基本方程 ,以及泵系统边界条件与初始条件 ,利用牛顿莱福森法直接在计算机上进行水锤的数值计算。通过对几种常见的泵系统工况的计算结果和传统的图解法所得结果进行比较 ,表明本文方法速度快 。Water hammer was directly calculated by Newton Raphson method by adopting Marchal's non dimensional full characteristic curve based on the basic equations of the transient flow, which were derived from the elastic water column theory, as well as the boundary and initiation conditions. Compared with the results from the ordinary graphics method under several operations of common pumping systems, the results from the full characteristic curve method are faster to get and more precise.

关 键 词：水锤 数值计算 全特性曲线 水泵 

分 类 号：TV131.33[水利工程—水力学及河流动力学] TU991.39[建筑科学—市政工程]