静止円柱の表面変動圧力の空間相関および組織構造特性

In this study, the structure of fluctuating surface pressure acting on a fixed circular cylinder was investigated by wind tunnel tests and computational fluid dynamics. Examinations of effects of the aspect ratio of the model gives to fluctuating surface pressure acting on a fixed circular cylinder also were carried out. Moreover, effect of boundary conditions of side walls for CFD on fluctuating surface pressure on a fixed circular cylinder were investigated. As results of this study, it was found that the spacial correlation of fluctuating pressure on a fixed circular cylinder was affected by aspect ratio of the model. POD nalysis indicated that the fluctuating surface pressure acting on a circular cylinder had symmetric and asymmetric mode shapes along the cylinder axis.

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