用变时间步长计算多管路系统水锤现象

计算物理 ›› 1990, Vol. 7 ›› Issue (4): 434-442.

用变时间步长计算多管路系统水锤现象

韩庆书

北京大学分校 100083

收稿日期:1990-03-13 出版日期:1990-12-25 发布日期:1990-12-25

CALCULATIONS OF WATER HAMMER FOR MULTI-PIPING BRANCH SYSTEM BY VARIABLE TIME STEP METHOD

Han Qingshu

Branch Campus of Peking University

Received:1990-03-13 Online:1990-12-25 Published:1990-12-25

摘要/Abstract

摘要： 从不定常偏微分方程组出发,采用特征线方法,对多管路系统的不同管道,使用不同的时间步长计算了水锤现象。由于步长随需要和管长不同而异,使计算最大大减少,保持了计算精度,提高了计算效率。数值模拟结果是满意的,可为工程中管道系统的设计及防护提供参考和依据。

关键词: 特征线方法, 多管路系统, 水锤

Abstract: The results of water hammer for multi-piping system is presented the water hammer in complicated pipes has been computed by characteristic line-method. To improve the accuracy of numerical calculations, Variable step with multipipes are used. So the computational work are greatly reduced. Some computable results are satisfactory. It will provide the foundation to choose plan for piping desin and piping protection.

Key words: characteristic line-method, multi-piping branch system, water hammer

韩庆书. 用变时间步长计算多管路系统水锤现象[J]. 计算物理, 1990, 7(4): 434-442.

Han Qingshu. CALCULATIONS OF WATER HAMMER FOR MULTI-PIPING BRANCH SYSTEM BY VARIABLE TIME STEP METHOD[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1990, 7(4): 434-442.