HYDRAULIC RESEARCH OF AERATORS ON TUNNEL SPILLWAYS  

作　　者：RUAN Shi-ping WU Jian-hua WU Wei-wei XI Ru-ze 

机构地区：[1]College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China, [2]Anhui Institute of Hydraulic Research, Bengbu 233000, China

出　　处：《Journal of Hydrodynamics》2007年第3期330-334,共5页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 50539060);the Innovative Project of Graduate Student in Jiangsu Province (Grant No.2005-60).

摘　　要：The selection of the configuration and size of an aerator was of importance for a tunnel spillway under the conditions of high speed flows. Experimental investigations were conducted on the effects of entrained air on the tunnel spillway in the Goupitan Project, based on the criterion of gravity similarity and the condition of aerated flow velocity of over 6 m/s, with physical models. The configurations of the aerators were presented of a larger bottom air concentration, to protect the tunnel spillway from cavitation as well as to see no water fills in the grooves.The selection of the configuration and size of an aerator was of importance for a tunnel spillway under the conditions of high speed flows. Experimental investigations were conducted on the effects of entrained air on the tunnel spillway in the Goupitan Project, based on the criterion of gravity similarity and the condition of aerated flow velocity of over 6 m/s, with physical models. The configurations of the aerators were presented of a larger bottom air concentration, to protect the tunnel spillway from cavitation as well as to see no water fills in the grooves.

关 键 词：CAVITATION AERATOR air concentration tunnel spillway the Goupitan Project 

分 类 号：TV651.1[水利工程—水利水电工程] TV131