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arXiv 1606.04007physics.flu-dyn
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磁滞法拉第波

Hysteretic Faraday Waves

Nicolas Périnet, Claudio Falcón, Jalel Chergui, Damir Juric, Seungwon Shin

摘要:

我们报告的数值和理论研究的参数放大波的亚临界分叉出现在两个不混溶的不可压缩流体之间的界面时,较低的流体层是非常浅的。作为一个关键的控制参数被超越,小振幅表面波分叉高度非线性的,其振幅的两倍。我们提出了一个简单的唯象模型,可以描述所观察到的分岔。我们将这种滞后与剪切应力的变化,使用一个简单的应力平衡,与数值结果一致。

英文摘要:

We report on the numerical and theoretical study of the subcritical bifurcation of parametrically amplified waves appearing at the interface between two immiscible incompressible fluids when the layer of the lower fluid is very shallow. As a critical control parameter is surpassed, small amplitude surface waves bifurcate towards highly nonlinear ones, with twice their amplitude. We propose a simple phenomenological model which can describe the observed bifurcation. We relate this hysteresis with the change of shear stress using a simple stress balance, in agreement with numerical results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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