排灌机械工程学报2017，Vol.35Issue(6)：488-494,7.DOI:10.3969/j.issn.1674-8530.16.0064
小湾水电站泄洪洞洞身数值模拟
Numerical simulation of tunnel of Xiaowan Hydropower Station
陈瑞华 1杨吉健 1马麟 1胡中科 1高兰兰2
作者信息
- 1. 中国电建集团昆明勘测设计研究院有限公司,云南 昆明 650033
- 2. 云南农业大学水利学院,云南 昆明 650201
- 折叠
摘要
Abstract
The tunnel of Xiaowan Hydropower Station with high head water and large discharge has complex hydraulic conditions.The model test has scale effect.By using RNG k-ε turbulence model, and unique FAVOR grid technology of Flow 3D, 3D numerical simulation was conducted for nine wor-king conditions of the tunnel of Xiaowan Hydropower Station.The discharge capacity, flow pattern, dynamic pressure, water surface, velocity of flow were obtained and were compared to those of the model test and prototype observation.The results show that the discharge capacity simulated is a littler greater than that of the model test.There is no gasbag in the pressure section, and the flow regime is smooth in the non-pressure section, there is no water and water-wing to attack the cave roof, and stable cavity is formed behind the aerator.The simulation results are consistent with those of the model test and prototype observation.The velocity of flow and water depth of the model test and the simulation are almost the same and in accord with the characteristics of rapids.The distribution law of dynamic pressure at the inlet of tunnel, turning section, ogee surface and arc segment is the same with that of the model test, showing that the hydraulic parameters of the numerical simulation have a certain accuracy and are more systematic than those of the model test and prototype observation.关键词
泄洪洞/数值模拟/模型试验/原型观测Key words
tunnel/numerical simulation/model test/prototype observation分类
建筑与水利引用本文复制引用
陈瑞华,杨吉健,马麟,胡中科,高兰兰..小湾水电站泄洪洞洞身数值模拟[J].排灌机械工程学报,2017,35(6):488-494,7.
