Prediction of aerodynamic characteristics of a box girder bridge section using the LES turbulence model
Prediction of aerodynamic characteristics of a box girder bridge section using the LES turbulence model
复制标题
DOI：
10.1016/j.jweia.2008.02.015
复制
发表时间：
2008-10-01
影响因子：
4.8
通讯作者：
Ikeda, T.
中科院分区：
文献类型：
--
作者：
Sarwar, M. W.;Ishihara, T.;Ikeda, T.
本文采用大涡模拟湍流模型，通过三维计算流体动力学的方法，研究了一个箱形梁桥断面的动力特性。分析了流线型箱梁截面的绕流情况，评价了截面细节对桥梁截面气动特性的影响。此外，本文还模拟了大展弦比矩形截面的受迫振动情况，研究了其气动弹性特性。对一箱形截面（B/D = 11.6）的颤振特性进行了研究，并与一般矩形截面的试验结果进行了比较。最后，几何修改的桥梁截面上的气动弹性不稳定性的影响。(c)2008爱思唯尔有限公司保留所有权利。
In this study, acrodynamic characteristics of a box girder bridge section are investigated by three-dimensional computational fluid dynamics using the LES turbulence model. Flow around the streamline box girder section is analyzed, and the effect of section details on the aerodynamic characteristics of bridge section is evaluated. In addition, forced vibration cases are simulated to investigate the aeroelastic behavior of rectangular sections with a high aspect ratio. The flutter characteristics of a box girder bridge section (B/D = 11.6) are investigated and compared with experimental results of the generic rectangular cross-sections. Finally, influence of the geometrical modifications on the aeroelastic instability of the bridge section is pursued. (c) 2008 Elsevier Ltd. All rights reserved.