三次元離散渦法による車両への横風による流体力に関する研究(<小特集>:渦)

概要

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This paper presents a method for the velocity and the pressure distribution around the car in three dimensional flows using the source panel method and the discrete vortex method. The discrete vortex method has been applied to simulation of unsteady separated flow at a high Reynolds number. We distend in three dimensional flows a simple method, which is proposed by Akamatsu in two dimensional flows on the boundary element method to calculat the pressure distribution. The calculation results are in good agreement with the experiment one. It shows effectiveness of the boundary-layer control by setting rotating cylinders and Fin. They are valid. When the lean angle between uniform flow and the car has α=45°, separation bubble and wake becomes conical and their bottom aspects are connected.
社団法人日本機械学会の論文
2000-04-25