HYDRAULIC CHARACTERISTICS OF PARTIAL OPENING OF THE WORKING GATE FOR A DISCHARGE TUNNEL

作     者：WU Jian-hua FENG Shu-rong WU Wei-wei RUAN Shi-ping WU Jian-hua College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China FENG Shu-rong China Hydro Mid-South Design and Research Institute, Changsha 410014, China WU Wei-wei, RUAN Shi-ping College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China

作者机构：College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China China Hydro Mid-South Design and Research Institute Changsha 410014 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2007年第19卷第4期

页      面：488-493页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China (Grant No. 50539060) 

主　　题：partial opening hydraulic characteristics working gate discharge tunnel 

摘      要：The partial opening of the working gate for a discharge tunnel is used more and more widely in the various conditions, such as releasing discharge to meet the needs of the various stages under construction, or of the operations at low reservoir levels. In this article the hydraulic characteristics were investigated of the partial opening of the working gate based on the physical model experiments of the discharge tunnel for the Longtan Hydropower Project, including the discharge coefficient, the surface profile of the free flow section, the bottom pressure distribution of the tunnel with an aerator, the cavity length just from the ramp, and the wall pressure of the curve section of the outlet. Some new issues were discussed and the properties were presented of the partial opening of the gate.