302 一様流中で自励振動する多関節平板周りの流れ構造(2)(OS3-1 噴流,後流,せん断流の構造・普遍的特性(後流1),OS3噴流,後流,せん断流の構造・普遍的特性)

概要

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The fluttering characteristics of a multi-articulated flat plate were investigated experimentally in a wind tunnel. An articulated flat plate oscillates itself in a mean flow, and it has steady oscillating mode. The flow structures around an articulated plate were visualized by using the smoke wire method. From the results of visualization, it was found that the separated flow region formed on the concave side of the articles of the plate. Also the tip vortices were formed from both of the side edges of the plate. These separated regions and tip vortices formed around the articulated plate synchronized with the periodic movement of the plate. Furthermore, the results of the visualization showed that the separated region formed behind the articulated plate was disappeared when the tip vortices were growth. It is because that the tip vortices induce the flow behind the plate to the surface of the flat plate.
一般社団法人日本機械学会の論文
2007-11-17