流体工学部門講演会講演論文集
Online ISSN : 2424-2896
セッションID: G715
会議情報
G715 三次元流れにおける溝付き正方形角柱周りの空力特性 : 溝間隔と溝幅の影響(GS7-4 流体一般,一般セッション)
井戸川 光貴青山 智明岡永 博夫青木 克巳
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会議録・要旨集 フリー

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The objective of this study is to understand the aerodynamic characteristics of three-dimensional flow around square cylinder with grooves. This study clarifies the effects of the drag reduction using the grooves of square cylinders. Experimental investigations on the flow around square cylinders were implemented in the range of 5.0x10^4=<R=<1.0x10^5. Flow visualizations with the suspension method of the flow were also implemented. The results demonstrate that a drag coefficient also decreases, As the groove width become smaller. Furthermore, a drag coefficient increases by enlarging a groove interval. It is found that the drag coefficient with groove decreased by about 8% in compared without groove.
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© 2012 一般社団法人 日本機械学会
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