D133 後退付着線近傍における境界層不安定性について

概要

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In order to enhance our understanding about instability phenomenon in 3-D boundary layer, an experimental investigation has been done through a wind tunnel testing using a yawed cylinder model. The experiment was focused on the region between the attachment line and the area, where both cross-flow and streamline-curvature instabilities appear at some downstream distance to determine the lowest critical Reynolds number of the cross-flow instability by means of artificial forcing through a hole. Hot-wire measurements showed coexistence of cross-flow and streamline-curvature modes in the wedge developing a forcing point. Experimental results also showed neutral growth of the cross-flow mode in downstream region determining the lowest critical Reynolds number, which is in certain good agreement with current theoretical calculations.
日本流体力学会の論文
2000-07-25