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Numerical simulation on flow field around pickup trucks
Yang Yong-bai,Wang Jing-yu,Hu Xing-jun
吉林大学学报(工学版). 2007, 37 (06):
1236-1241.
DOI:
CFD was used to simulate flow field around a generic pickup truck. The surface pressure distributions, the wake velocity distribution of the special profiles and the flow structures were obtained. The result of numerical simulation tallies with the result of wind tunnel experimental investigation. The simulation results indicate that the wake of the pickup truck is formed of two regions, one above the truck bed, and the other behind the tailgate. CFD simulations have been done for the geometry changes of the pickup tuck. The drag coefficient variations have the same trends with the experiment results of the real pickup trucks. The effects of aerodynamic drag reduction by tailgate have been conformed. It was found that it has an accurate result with CFD to simulate the flow field around pickup trucks.
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