NONLINEAR DYNAMICS OF VISCOUS FLOWS PAST A CIRCULAR CYLINDER
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摘要: 本文利用非线性动力学的概念和方法来研究粘性不可压缩流体的二维圆柱绕流问题．计算了定常流失稳以及出现混沌的临界雷诺数，并估计了混沌解的一些统计特征．
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关键词:
- 圆柱绕流 /
- 非线性动力学 /
- 不动点 /
- 稳定性 /
- Lyapunov指数 /
- 混沌 /
- 分形 /
- Kolmogorov熵
Abstract: In this paper the problem of two-dimensional viscous flows past a circular cylinder is studied by making use of the concepts and methods of non-linear dynamics.The critical Reynolds numbers for a steady flow to becomeunstable,and for chaos to appear are computed,and some statistical charac- teristics of chaotic solutions are evaluated.-
Key words:
- flow past a circular cylinder /
- onliliear dynamics /
- fixed point /
- stability /
- Lyapunov exponets /
- chaos /
- fractal /
- Kolmogorov entrc
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