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arXiv 1004.5237math-phmath.APmath.MP
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具有多个临界层的定常水波:内部动力学

Steady water waves with multiple critical layers: interior dynamics

Mats Ehrnström, Joachim Escher, Gabriele Villari

摘要:

研究了具有多个临界层的小振幅稳态水波。这些是在有限深度的理想流体上传播的旋转二维重力波。据发现,任意多个关键层的猫眼涡是可能的,在不同的水平内的流体具有不同的结构。相应的涡量与流函数呈线性关系。

英文摘要:

We study small-amplitude steady water waves with multiple critical layers. Those are rotational two-dimensional gravity-waves propagating over a perfect fluid of finite depth. It is found that arbitrarily many critical layers with cat's-eye vortices are possible, with different structure at different levels within the fluid. The corresponding vorticity depends linearly on the stream function.

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