人民黄河
人民黃河
인민황하
Yellow River
2015年
11期
107-109,113
,共4页
柳思源%刘韩生%董瑜
柳思源%劉韓生%董瑜
류사원%류한생%동유
迎风性%TVD%水击方程%水击数值模拟
迎風性%TVD%水擊方程%水擊數值模擬
영풍성%TVD%수격방정%수격수치모의
windward%TVD%water hammer equation%numerical simulation of water hammer
水击问题会对水利枢纽的正常运行造成严重危害，模拟其过程至关重要。考虑TVD格式及水流的迎风性，应用于水击方程组中，模拟简单管道中的水击压力变化。并与Lax-Friedrichs( LF)、MacCormark( MC)、未考虑迎风性的TVD格式及解析解进行对比。结果表明：基于迎风性的TVD格式具有高分辨率、高精度、低耗散性等优点，相比于未考虑迎风性的TVD格式，其有更强的压制性，耗散性更弱。
水擊問題會對水利樞紐的正常運行造成嚴重危害，模擬其過程至關重要。攷慮TVD格式及水流的迎風性，應用于水擊方程組中，模擬簡單管道中的水擊壓力變化。併與Lax-Friedrichs( LF)、MacCormark( MC)、未攷慮迎風性的TVD格式及解析解進行對比。結果錶明：基于迎風性的TVD格式具有高分辨率、高精度、低耗散性等優點，相比于未攷慮迎風性的TVD格式，其有更彊的壓製性，耗散性更弱。
수격문제회대수리추뉴적정상운행조성엄중위해，모의기과정지관중요。고필TVD격식급수류적영풍성，응용우수격방정조중，모의간단관도중적수격압력변화。병여Lax-Friedrichs( LF)、MacCormark( MC)、미고필영풍성적TVD격식급해석해진행대비。결과표명：기우영풍성적TVD격식구유고분변솔、고정도、저모산성등우점，상비우미고필영풍성적TVD격식，기유경강적압제성，모산성경약。
It is crucial to simulate the process of water hammer because of its serious harm to the normal operation of running hydro. Numerical method to simulate water hammer phenomenon is a hot research currently. In this paper a TVD scheme considered the windward applying in numerically the water hammer couple was used to solve the water hammer equations to simulate water hammer pressure in a simple pipeline. A comparison with Lax-Friedrichs, MacCormark the TVD scheme not considered windward and analytical solutions shows that the TVD scheme considered the windward has the advantages of high resolution, high accuracy and low dissipation. The TVD scheme considered the windward is more repressive and less dissipative than that of the TVD scheme.
