| HYDRAULIC CHARACTERISTICS OF WATER-WINGS FOR THE MIDDLE-PIER OF A DISCHARGE TUNNEL |
| |
| 作者姓名： | WU Jian-hua CAI Chang-guang JI Wei RUAN Shi-ping |
| |
| 作者单位： | WU Jian-hua College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing 210098，China CAI Chang-guang China Hydropower Mid-South Design and Research Institute，Changsha 410014，China JI Wei，RUAN Shi-ping College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing 210098，China |
| |
| 摘 要： | 1. INTRODUCTION In the design of a discharge tunnel with high water head and large flow, it is important to study the cavitation and the energy dissipation, such as the prevention of cavitation for slots of various gates 1-4], the effects of entrained ai…
|
| 关 键 词： | 水翼 空间分析 流量隧道 水流动力学 |
| 收稿时间： | 2006-03-10 |
Hydraulic characteristics of water-wings for the middle-pier of a discharge tunnel |
| |
| WU Jian-hua CAI Chang-guang JI Wei RUAN Shi-ping.HYDRAULIC CHARACTERISTICS OF WATER-WINGS FOR THE MIDDLE-PIER OF A DISCHARGE TUNNEL[J].Journal of Hydrodynamics,2006,18(5):567-571. |
| |
| Authors: | Jian-hua Chang-guang CAI Wei JI Shi-ping RUAN |
| |
| Institution: | aCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;bChina Hydropower Mid-South Design and Research Institute, Changsha 410014, China;cCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China |
| |
| Abstract: | Water-wings, induced by the middle-pier placed in the inlet of a discharge tunnel, have harmful effects on the operation of the discharge tunnel. Based on dimensional analysis and physical model tests, the hydraulic characteristics of water-wings were investigated and their causes were analyzed in this study. The results show that the height and length of the water-wings increased with the increase of three factors, i.e., the Froude number Frd of the outlet of the pressure section, the depth Hc of the water surface concave at the end of the middle-pier, and the impact length Li of the two flows after this end. |
| |
| Keywords: | water-wing dimensional analysis discharge tunnel middle-pier |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
