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

页码：203 / 207

页数：4

共 10 条

[1]

Gu Z., Wang H., Luo R., Et al., Study on automobile cross-wind stability in consideration of pressure center's shift, Journal of Hunan University (Nature Science), 32, 3, pp. 70-73, (2005)

[2]

Hai G., Gu Z., Wang H., Et al., Research on the effect of crosswinds on the stability of high speed vehicles, Journal of Hunan University (Natural Sciences), 33, 2, pp. 40-43, (2006)

[3]

Alexander A.A., Brian S.R., Walter W.W., The influence of vehicle aerodynamic and control response characteristics on driver-vehicle performance, SAE, 88, 2, pp. 1391-1399, (1979)

[4]

Richard H.K., Jeffrey R.H., Effects of crosswind on vehicle response -full-scale tests and analytical predictions, SAE, 89, 3, pp. 2578-2590, (1980)

[5]

Gu Z., Automotive Aerodynamics, (2005)

[6]

Zhu H., Bai X., Description method and simplified classification rule for fluid-solid interaction problems, Engineering Mechanics, 24, 10, pp. 92-99, (2007)

[7]

Grotjans H., Menter F.R., Wall functions for general application CFD codes, ECCOMAS 98 Proceedings of the Fourth European Computational Fluid Dynamics Conference, pp. 1112-1117, (1998)

[8]

Three-dimensional navier stokes predictions of steady-state rotor/stator interaction with pitch change, 3rd Annual Conference of the CFD, (1995)

[9]

Degand C., Farhat C., A three-dimensional torsional spring analogy method for unstructured dynamic meshes, Computers and Structures, 80, 3-4, pp. 305-316, (2002)

[10]

Shen C., Zhu H., Yang Z., Study on the aerodynamics mechanism of passenger car under unsteady crosswind, Advanced Materials Research, 631-632, 2013, pp. 809-816, (2013)

← 1 →