摘要
侧空腔长度是侧墙掺气坎设计时考虑的重点内容。采用模型试验和三维数值模拟,对侧墙掺气坎空腔长度的影响因素进行了探讨。结果表明,用紊流数学模型来模拟泄水道反弧末端侧墙掺气坎的空腔长度是可行的;侧墙掺气坎空腔长度不仅与侧墙掺气坎的体型尺寸有关,还与底部掺气坎的体型尺寸有很大关系。在设计侧墙掺气坎时,需同时考虑底部掺气坎的尺寸。
The length of air cavity is an important factor in design of lateral aerator. Based on model of experiment and numerical simulation, the factors influencing the length of air cavity are analyzed in this paper. The result indicates that it is feasible to simulate the length of air cavity by the mathematic model of the turbulent flow. The length of air cavity is influenced not only by the size of lateral aerator but also by the size of base aerator. Size of base aerator should be considered in design of a lateral aerator.
出处
《水力发电学报》
EI
CSCD
北大核心
2007年第5期112-115,共4页
Journal of Hydroelectric Engineering
基金
国家自然科学基金委员会
二滩水电开发有限责任公司雅砻江水电开发联合研究基金项目(50539060)
关键词
水力学
空腔长度
模型试验
数值模拟
掺气减蚀
掺气坎
侧掺气
hydraulics
length of air cavity
model test
numerical simulation
cavitations alleviation by aeration
aerator
lateral aerator
