Application of Interactive Orthogonal Design on the Aerodynamic Drag Optimization of Hatchback Car

Abstract:

The interactive orthogonal design was employed to investigate the aerodynamic drag coefficient (CD) of hatchback car by using CFD methods. And the effects of back windshield angle, diffuser angle, front windshield angle, hood angle, side windshield angle and tail length were discussed. The results indicates that back windshield angle, diffuser angle and their interaction, hood angle and front windshield angle have notable effect on the CD of the model, while other parameters and interactions have no notable effect. The best CD conditions are: back windshield angle 20°/60°, diffuser angle 12°, front windshield angle 30°, hood angle 15° and tail length 4300mm.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 2703-2707
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.2703
• Online since: May 2013
• Authors: Hao Yu, Hui Zhu, Zhi Gang Yang
• Keywords: Computational Fluid Dynamics (CFD), Drag Coefficient, Hatchback, Interactive Orthogonal Experiment

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