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.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
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
关键词
水锤
数值计算
全特性曲线
水泵
Water hammers, Numerical computation, Full characteristic curve, Pump
