Streamline-Curvature Instability of the Flow on a Rotating Disk with Uniform Suction
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概要
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Linear stability analysis of the rotating-disk flow is made with a very simple model of distur-bance equations consisting of the parallel-flow approximation and an additional term associatedwith the curvature of flow field. Nurnerical solutions of the resulting eigenvalue problem indi-cate the existence of two instabilities and reveal their entirely different mechanisms. One is thewell-known cross-flow instability and the other is the instability due to the curvature of externalstreamlines, which was recently predicted to occur in three-dimensional boundary layers on aswept wing. The streamline-curvature mode is in fact identical with the classical one called'parallel' or 'type 2' instability in atornospheric literature.
- 社団法人日本物理学会の論文
- 1996-08-15
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