Numerical Simulation of the Three Component Coefficients of Bridge

Article Preview

Abstract:

Numerical simulation has been carried out on the airflow field of bridge girder at construction state and completed bridge state under different wind speed and different wind angle of attack. The k-ε two-equation turbulence model is used in the numerical simulation by FLUENT. Variation of the three component coefficients can be obtained. The results show that drag coefficient and lift coefficient gradually becomes smaller and tends to stabilize, while pitch moment coefficient shows the trend of first increased and then reduced as wind speed increases. Drag coefficient and pitch moment coefficient does not change much and lift coefficient gradually becomes smaller with the change of wind angle of attack.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 430-432)

Pages:

2004-2007

Citation:

Online since:

January 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Jiawu Li, Zhixing Lin, Haifan Xiang. The research on Reynolds number effects of static aerodynamic coefficient of flat box-shaped bridge deck. Highway, 2004, (09):43-46 (In Chinese).

Google Scholar

[2] Haifan Xiang. Investigation of bridge wind engineering in 21th century. [J]Journal of Tong ji University, 2002, 35 (5): 5292532).

Google Scholar

[3] Beith J.G. A practical engineering method for the flutter analysis of long span bridges. J. Wind engineering and industrial aerodynamies. 1998, 357一366.

DOI: 10.1016/s0167-6105(98)00156-1

Google Scholar

[4] Matsuda K., Cooper K.R., Tanaka H. .An investigation of Reynolds number effects on the steady and unsteady aerodynamic forces on a 1:10 scale bridge deck section model. [C].Journal of Wind Engineering and Industrial Aerodynamic, 2001, V89: 58-63.

DOI: 10.1016/s0167-6105(01)00062-9

Google Scholar

[5] Wei Li, Zhaotong Hu. The Reynolds number effects of three component coefficients of bridge deck section using CFD. [D]Chang'an University, 2007 (In Chinese).

Google Scholar