0222 自動車モデル形状とその周りの流れの関係 : モデル後流の乱流量の特性(OS2-5 乱流の計測・解析・制御,オーガナイズドセッション)

概要

論文の詳細を見る
The relation between the shape of a vehicle model and surrounding flow has not been clarified. To clarify the relation, two vehicle models were used in experiments. One is easy to entrain side flow to the rear deck. Three-dimensional boundary layer is formed on the rear deck, so the model is called 3D model. Another is difficult to do so. Two-dimensional boundary layer is formed there, so the model is called 2D model. Velocity fluctuation in the model wake was measured with the hot-wire anemometer. The models were pushed up sinusoidally. In the 3D model, the velocity fluctuation in the model wake was small. On the other hand, in the 2D model, the peak detection percentage is larger than another. 2D model has a lot of positive peaks near the rear deck and negative peaks away from it.
社団法人日本機械学会の論文
2009-11-06