Influence of Lateral Interval on Aerodynamics Characteristics of Crossing Vehicles

Li Xin Guo; Hao Zhang; Tao Zheng; Jin Li Li

doi:10.4028/www.scientific.net/AMM.224.422

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 224Influence of Lateral Interval on Aerodynamics...

Influence of Lateral Interval on Aerodynamics Characteristics of Crossing Vehicles

Abstract:

The investigations about vehicle crossing process mainly use numerical simulation methods and, moreover, the relevant investigation is quite less. In this study, a three- dimensional fluid simulation model was established. By moving mesh technique, the three- dimensional transient simulation for vehicle crossing process was finished. The aerodynamics characteristics of vehicle crossing process with different lateral interval distances were analyzed. The analytical results show that the smaller the lateral interval distance, the more the transverse thrust between two vehicles during the crossing process. During the whole crossing process, the lateral force shows itself with repulsion in the beginning and attraction in the end. When the lateral interval distance of crossing is very small, the air disturbance due to crossing not only makes large affection to the lateral force but also influence obviously the positive pressure area of the front car bodywork.