S054013 回転楕円柱周りのはく離現象に関する研究([S05401]噴流,後流,およびはく離流れの基礎と応用:最前線(1))

概要

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The shifted flow separation point on an airfoil wall must be predicted with a high accuracy over a time series in order to precisely analyze the unsteady flow around the moving airfoil. Pressures on the wall of the cylindroid, which was rotated in a uniform flow, were measured in order to obtain the test data for developing the numerical analysis method for flows including unsteady flow separation phenomena. From the results, when the rotational speed was low, the pressure on the suction side near the leading edge was significantly lowered. On the other hand, the pressure lowering was insignificant at high rotational speeds. Results suggest that the air flows along the wall around the leading edge in the case of low rotational speeds, whereas flow separation occurs at the leading edge in the case of high rotational speeds as a result of the large centrifugal force in the boundary layer.
一般社団法人日本機械学会の論文
2011-09-11