可視化による多関節平板周りの流れ構造の解明

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  • Elucidation of the flow structures around the Multi-articulated flat plat by visualization

説明

<p>The multi-articulated flat plate oscillates itself in a mean flow, and it has steady oscillating mode. The flow structures around an articulated plate were attracted interests. These were visualized by using the smoke wire method. From the results, it was found that the separated flow region formed on the concave side of the articles of the plate and behind the plates. Also, the tip vortices were formed from both side edges of the plate. These separated regions and tip vortices were released into downstream and the new vortices with the opposite sign were formed synchronized with the periodic movement of the plate. Furthermore, the results of the visualization showed that the separated region formed behind the plates was disappeared when the third plate inclined perpendicular to the mean-flow. It is because that the tip vortices induce the flow behind the plate to the surface of the flat plate.</p>

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