Determination of Aerodynamic Forces on Stationary/Moving Vehicle-Bridge Deck System Under Crosswinds using Computational Fluid Dynamics
Determination of Aerodynamic Forces on Stationary/Moving Vehicle-Bridge Deck System Under Crosswinds using Computational Fluid Dynamics
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DOI：
10.1080/19942060.2013.11015477
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发表时间：
2013-01
影响因子：
6.1
通讯作者：
Bin Wang;You‐lin Xu;Ledong Zhu;S. Cao;Yongle Li
中科院分区：
文献类型：
--
作者：
Bin Wang;You‐lin Xu;Ledong Zhu;S. Cao;Yongle Li
摘要 为了研究道路车辆在高侧风下在大跨桥梁上行驶的安全性，需要确定移动车辆-桥面系统的气动力。本文报道了使用计算流体动力学（CFD）来模拟侧风下车辆-桥面耦合系统上的空气动力系数。对固定车辆-甲板系统的空气动力系数进行了模拟，然后与风洞结果进行了比较。然后使用相对速度法来获得移动车辆甲板系统的空气动力。评估了车辆-甲板系统上的空气动力的移动效应。结果表明，车辆在桥面第一车道上的运动确实会影响桥面气动系数，但如果考虑与车辆的相对偏航角，对车辆气动系数的影响很小。
Abstract To investigate the safety of road vehicles running on a long-span bridge under high crosswinds, the aerodynamic forces of a moving vehicle-bridge deck system need to be determined. This paper reports the use of computational fluid dynamics (CFD) to simulate the aerodynamic forces on coupled vehicle-bridge deck systems under crosswinds in terms of aerodynamic coefficients. The aerodynamic coefficients of a stationary vehicle-deck system were simulated and then compared with wind tunnel results. A relative velocity method was then used to obtain the aerodynamic forces of a moving vehicle-deck system. The moving effects on the aerodynamic forces on the vehicle-deck system were evaluated. The results show that the movement of the vehicle on the first lane of the bridge deck does affect the aerodynamic coefficients of the bridge deck but has only slight effects on the aerodynamic coefficients of the vehicle if the relative yaw angle to the vehicle is taken into account.