DETERMINATION OF AERODYNAMIC CHARACTERISTICS OF VEHICLE-BRIDGE SYSTEMS USING LES METHOD
To investigate the safety of vehicles running on a long-span bridge under high winds,the aerodynamic characteristics of both vehicle and bridge deck need to be determined. This paper thus employs the Large Eddy Simulation (LES) method as one of powerful computational fluid dynamics (CFD) techniques to explore the aerodynamic characteristics of both vehicle and bridge deck in a vehicle-bridge system. A number of cases,including vehicle on either ground or bridge deck,are investigated using the CFD Fluent software in a 3D space. The effects of vehicle position on different deck lanes and the details of bridge deck on dynamic characteristics are considered. Comparisons between simulation results and wind tunnel test results are also performed to validate the computer simulation method used in this study. The comparative results are satisfactory and the simulation results provide more information on aerodynamic characteristics of both vehicle and bridge deck.
Vehicle-bridge system Aerodynamic characteristics Computational fluid dynamics Large eddy simulation
Bin Wang You-Lin Xu Le-Dong Zhu Yong-Le Li
Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hong Kong,P.R.Ch Department of Bridge Engineering,Tongji University,Shanghai 200092,P.R.China Department of Bridge Engineering,Southwest Jiaotong University,Chengdu 610031,P. R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
1654-1660
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）