红水河2024，Vol.43Issue(2)：44-48,68,6.DOI:10.3969/j.issn.1001-408X.2024.02.009
高流速、大流量无压洞掺气设施体形优化模型试验研究
Model Test on Shape Optimization of Air Entraining Facilities in Free Flow Tunnel with High Flow Rate and Large Flow Rate
郝杰 1郝爱君2
作者信息
- 1. 新疆水利水电勘测设计研究院有限责任公司,新疆 乌鲁木齐 830000
- 2. 吉林水利电力职业学院,吉林 长春 130117
- 折叠
摘要
Abstract
Spillway structures with high water head,large flow and high flow velocity often need to set up aeration facilities to reduce cavitation damage.Based on the example of a water conservancy project in Xinjiang,the hydraulic model test of flood discharge and sand flushing tunnel was carried out to optimize the design of the bucket height,ventilation hole area,slope ratio and type of No.1 and No.2 air entraining facilities.The results show that after the shape optimization,under various working conditions,the aeration effect of the air entraining facility is good,the aeration cavity is complete and stable,and there is no unfavorable flow pattern such as large backwater under the ridge;The ventilation of the ventilation hole is smooth,the overall flow pattern is smooth,and there is no adverse phenomenon such as water wing splashing to the top of the tunnel;The residual amplitude along the way meets the requirements;The flow capacity and flow coefficient are basically consistent with the original design.The research results can provide guidance and technical support for the study of the shape of air entraining facilities in similar projects.关键词
模型试验/无压洞/掺气设施/体形优化/流态Key words
model test/free flow tunnel/air entraining facilities/shape optimization/flow regime分类
建筑与水利引用本文复制引用
郝杰,郝爱君..高流速、大流量无压洞掺气设施体形优化模型试验研究[J].红水河,2024,43(2):44-48,68,6.
