Journal of Flow Visualization and Image Processing

ISSN for PRINT: 1065-3090

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume14

Issue 2

105 pages

DOI: 10.1615/JFlowVisImageProc.v14.i2

Issue price - $163.00

Chang-Hsien Tai
Department of Vehicle Engineering National Pingtong University of Science and Technology, Pingtung 912, Taiwan, R.O.C.

Yu-Ren Wang
Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan, 912

Yu-Chang Cheng
Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan, 912

Driving safety and comfort have enormous relationship with the flow field surrounding vehicles. Especially, when two cars mutually overtake each other, flow field becomes complicated because the high-speed wind impinging on vehicles will cause disturbance phenomenon. This paper analyzes the flow field of two vehicles overtaking using the Computation Fluid Dynamics (CFD) method and applies dynamic grid technique to solve the unsteady 3D Navier−Stokes equation. This study used three test models for different vehicles spaces to monitor the change in flow field and to analyze related aerodynamic coefficients. The results showed that, when two vehicles spacing is very small, aerodynamic characteristic caused by the large vehicle has a very tremendous influence on the small car. This affects the drivability and control ability of the driver in the small car.

DOI: 10.1615/JFlowVisImageProc.v14.i2.30 Download article, 171-182 pages

Article price - $35.00

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