长江科学院院报 ›› 2013, Vol. 30 ›› Issue (5): 47-50.DOI: 10.3969/j.issn.1001-5485.2013.05.011

• 水力学 • 上一篇    下一篇

TVD格式在上游调压室水击数值模拟中的应用

黄逸军,刘韩生   

  1. 西北农林科技大学 水利与建筑工程学院,陕西 杨凌 712100
  • 收稿日期:2012-09-28 修回日期:2013-04-28 出版日期:2013-04-28 发布日期:2013-04-28
  • 通讯作者: 刘韩生(1962-),男,陕西韩城人,教授,博士,从事水力学与水工建筑物方面的研究,(电话)13319231569(电子信箱)hanshengliu@126.com。
  • 作者简介:黄逸军(1988-),男,江西抚州人,硕士研究生,从事水力学与水工建筑物方面的研究,电话(15891398953)电子信箱(huangyijun1988@163.com)。

Numerical Simulation of Water Hammer with TVD Scheme in the Upstream Surge Chamber

HUANG Yi-jun,LIU Han-sheng   

  1. College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China
  • Received:2012-09-28 Revised:2013-04-28 Online:2013-04-28 Published:2013-04-28

摘要: 为了模拟含上游调压室水电站的水力过渡过程,采用TVD格式求解水击方程,并结合调压室系统的基本方程组和给定的边界条件来模拟水击压力变化。将此方法用于工程实例,其计算所得的水头与实测水头相吻合;并将计算所得的水头与MacCormark 格式和Lax-Friedrichs格式的计算结果比较,结果表明:TVD格式能有效模拟含上游调压室的水击现象,其结果具有耗散性低,不产生虚假数值震荡,计算精度高等优点。

关键词: 水击数值模拟, TVD格式 , 水力学 , 调压室

Abstract: In order to simulate the hydraulic transient of the hydropower station which has upstream surge chamber,a TVD scheme is employed to solve the water hammer equations. In association with the basic equations of the surge chamber system and the given boundary conditions,the variation of water hammer pressure is simulated. The approach is applied to engineering practice and the calculated waterhead is consistent with measured data. Furthermore,the calculation result is compared with those calculated by using MacCormark and Lax-Friedrichs schemes. It’s revealed that the TVD scheme can effectively simulate the water hammer effect in the upstream surge chamber,and the calculation is less dissipative,non-oscillatory,and highly precise.

Key words: numerical simulation of water hammer , TVD scheme , hydraulics , surge chamber

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