科研之友
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摘要
A two-dimensional Ginzburg-Landau amplitude equation for the 3D wake of a circular cylinder is derived. This equation, which accounts for the rotational symmetry breaking of the flow, allows us to perform a first analytical study of the secondary instabilities of the 2D wake patterns. The results are applied toward the stability of oblique and (chevrons) patterns. A global overview of the origin, the dynamics, and the stability of oblique shedding patterns is finally given and compared to experimental data.
- 出版日期1992-4-1
