A new design of ski-jump-step spillway  

作　　者：吴建华 钱尚拓 马飞 

机构地区：[1]College of Water Conservancy and Hydropower Engineering,Hohai University

出　　处：《Journal of Hydrodynamics》2016年第5期914-917,共4页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foun-dation of China(Grant No.51479057);the PAPD(Grant No.3014-SYS1401)

摘　　要：A new kind of ski-jump-step spillway was reported. By means of the effects of the aeration basin, it supplies the sufficient aeration flow from the first step for stepped chutes, especially for large unit discharge. The physical model experiments demonstrated that, this spillway makes a far better hydraulic performance as regards energy dissipation and cavitation damage protection than the current and conventional stepped spillways, and the unit discharge can be enlarged from about 50 m3/s-60 m3/s.m to 118 m3/s.m in order to significantly reduce the width of the spillways.A new kind of ski-jump-step spillway was reported. By means of the effects of the aeration basin, it supplies the sufficient aeration flow from the first step for stepped chutes, especially for large unit discharge. The physical model experiments demonstrated that, this spillway makes a far better hydraulic performance as regards energy dissipation and cavitation damage protection than the current and conventional stepped spillways, and the unit discharge can be enlarged from about 50 m3/s-60 m3/s.m to 118 m3/s.m in order to significantly reduce the width of the spillways.

关 键 词：CAVITATION energy dissipation PRE-AERATION ski-jump-step spillway 

分 类 号：TV651.1[水利工程—水利水电工程] TV652.1