高速車両底面の流れの制御による空力特性への影響 : 流路壁による効果

概要

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Channels by skirts are considered in order to style the underside of vehicles in such a way as to facilitate the air flow in relation to stability problems. The ground effect of these channels attached to the middle or/and rear of the vehicle underside is investigated in a wind tunnel with a moving belt and a suction box. Flow visualization of the underside is carried out using the methods of oil and tufts. As a result, these channels can control the flow underneath the underside of the vehicle, which has an important effect on the aerodynamic lift. The diffuser-type channel is effective in reduction of the lift. But effect to the drag are small. From flow patterns, the flow inside the channel on the middle is referred to the flow in a sudden enlargement or a contraction, and that on the rear to that in a diffuser.
一般社団法人日本機械学会の論文
1992-04-25