水电站调压室涌浪最不利叠加时刻的研究  

Study on the worst moment of superposed surge wave in surge tank

作　　者：程永光[1] 陈鉴治[1] 杨建东[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水利学报》2004年第7期109-113,共5页Journal of Hydraulic Engineering

摘　　要：在计算长引水隧洞水电站和抽水蓄能电站的调压室涌浪水位时须考虑叠加工况已是共识,但最不利叠加时刻应如何确定,一直没人作过认真探讨。本文从调压室基本方程出发,根据能量转换的观点,分析论证了最不利叠加的物理实质和发生位置,指出最不利叠加时刻应选在初始工况和叠加工况的调压室水位 隧洞流量关系曲线的相切点。通过调压室基本方程的数值解和具体抽水蓄能电站涌浪叠架的计算分析,进一步验证了该结论。Based on the basic equation of wave motion for surge tank and from the viewpiont of energy exchange,the moment for occurrence of the worst superposition of surge wave is analyzed.It is found that the worst moment can be determined by the water level-tunnel flow relationship curve.It happens at the point at which the water level-tunnel flow relationship curve for original operation situation tangent to the curve for superposed operation situation.This conclusion is verified by the calculation for an example of pump-storage project.

关 键 词：词压室 涌波 叠加工况 

分 类 号：TV134[水利工程—水力学及河流动力学]