Numerical simulation of fluid-solid-interactions for double-deck coach under time-dependent crosswinds

被引:0
作者
机构
[1] Shanghai Automotive Wind Tunnel Center, Tongji University
来源
Yang, Z.-G. (zhigangyang@tongji.edu.cn) | 1600年 / Tsinghua University卷 / 31期
关键词
ALE method; Coach; Crosswind stability; Fluid-solid interact; Numerical simulation;
D O I
10.6052/j.issn.1000-4750.2013.01.0066
中图分类号
学科分类号
摘要
The fluid-solid interaction (FSI) between crosswind and moving vehicles has an impact on driving safety. An arbitrary Lagrange-Euler method is applied to the FSI numerical simulation of a 1:1 double-deck coach model. A dynamic model for six-degrees-of-freedom systems is put into use to simplify the coach model. The systems are simulated under three typical crosswind forms (linear cross-wind, pseudo-jump cross-wind, sine cross-wind) respectively. FSI effect influences the lift force and the yawing moment more notably than other components of general forces, caused by the change of a flow field structure. Through the research, how much the FSI effect influence the general forces respectively can be quantitatively known. It provides a reference to simulate the vehicle travelling status in a more precise way.
引用
收藏
页码:203 / 207
页数:4
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