A critical pattern of crossflow around a slender |
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Authors: | Li Guo-hui Deng Xue-ying |
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Affiliation: | Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, P.R.China |
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Abstract: | Topological structure of a slender crossflow was discussed with topological analysis. It is pointed that the development of slender vortices leads to the change of topological structure about cross flow, and a critical flow pattern will appear. There is a high-order singular point in this critical flow pattern. And the index of the high-order singular is -3/2. The topological structure of this singular point is instable, so bifurcation will occur and the topological structure of flowfield will be changed by little disturbance. |
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Keywords: | slender high-order singular point bifurcation structure stability |
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