人民长江Issue(12)：57-59,3.DOI:10.16232/j.cnki.1001-4179.2015.12.014
阀门关闭速度对TVD格式数值模拟水击影响分析
Analysis on influence of valve′s closing speed on numerical simulation of water-hammer by TVD scheme
董瑜 1刘韩生 1褚洋2
作者信息
- 1. 西北农林科技大学 水利与建筑工程学院，陕西 杨凌712100
- 2. 山东新汇建设集团有限公司，山东 东营257091
- 折叠
摘要
Abstract
The Total Variation Diminishing ( TVD) scheme is adopted to simulate one-dimensional pressure pipeline water hammer caused by sudden close and slow close of the valve. Through changing the valve's closing speed, the influence of TVD scheme on simulation accuracy of water hammer pressure is analyzed. The results show that the faster the valve closes, the better the shock wave intermittence was captured by TVD scheme, compared with the typical second difference MC scheme. When the valve's closing speed is reduced to a certain degree, the TVD scheme and conventional calculation method have the same accura-cy, and their errors with analytic solution are less than 2%. The TVD scheme can effectively simulate the water hammer of pres-sure pipeline.关键词
数值模拟/TVD格式/水击/阀门关闭速度Key words
numerical simulation/TVD scheme/water hammer/valve closing speed分类
建筑与水利引用本文复制引用
董瑜,刘韩生,褚洋..阀门关闭速度对TVD格式数值模拟水击影响分析[J].人民长江,2015,(12):57-59,3.
