黑龙江科技大学学报2024，Vol.34Issue(3)：409-415,7.DOI:10.3969/j.issn.2095-7262.2024.03.012
尾流干扰下桥梁斜拉索风荷载的吹气控制
Jet flow control of wind loads on stay cables under wake disturbance
周道成 1刘子钰 1张洪福1
作者信息
- 1. 东北林业大学 土木与交通学院,哈尔滨 150040
- 折叠
摘要
Abstract
This paper aims to reduce the severe response to the wind load on side-by-side double cyl-inders(a simplified model of bridge stay cables),and proposes an active flow control method to suppress wind loads concurrently on these cylinders.The numerical simulation method is used to explore the flow control effects on the double cylinders.The results show that the maximum wind load presents at the spacing ratio of the side-by-side two cylinders with 3 times of the cylinder diameter,and the significant control effect appears at the jet flow velocity of 1.5 times of the inflow wind velocity applied to the wake of the cylinders,which effectively reduce the wind loads and suppress the vortex shedding in the double cylinders.The control mechanism is that the jet flow can effectively reduce the wake width of each cylin-der and suppress the interaction between the two wake streams.关键词
桥梁斜拉索/风荷载/吹气控制/漩涡脱落Key words
stay cable/wind load/jet flow control/vortex shedding分类
数理科学引用本文复制引用
周道成,刘子钰,张洪福..尾流干扰下桥梁斜拉索风荷载的吹气控制[J].黑龙江科技大学学报,2024,34(3):409-415,7.
