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arXiv 1503.04403physics.flu-dyn
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双频强迫下法拉第波振荡的数值模拟

Numerical simulation of Faraday waves oscillated by two-frequency forcing

Kentaro Takagi, Takeshi Matsumoto

摘要:

我们使用拉格朗日粒子修正的水平集方法(粒子水平集方法)对受迫双频振荡的法拉第波进行了数值模拟。在用线性稳定性分析验证模拟之后,我们表明正方形、六边形和菱形图案与实验室实验一致地再现[Arbell和Fineberg,Phys.Rev.Lett. 84,654(2000)和Phys.Rev.Lett. 85,756(2000)]。我们还表明,粒子水平集的高度守恒的体积是必要的模拟。菱形状态的数值结果与弱非线性分析进行了比较。讨论了模拟双频受迫法拉第波的其他模式的困难。

英文摘要:

We perform a numerical simulation of Faraday waves forced with two-frequency oscillations using a level-set method with Lagrangian-particle corrections (particle level-set method). After validating the simulation with the linear stability analysis, we show that square, hexagonal and rhomboidal patterns are reproduced in agreement with the laboratory experiments [Arbell and Fineberg, Phys. Rev. Lett. 84, 654 (2000) and Phys. Rev. Lett. 85, 756 (2000)]. We also show that the particle level-set's high degree of conservation of volume is necessary in the simulations. The numerical results of the rhomboidal states are compared with weakly nonlinear analysis. Difficulty in simulating other patterns of the two-frequency forced Faraday waves is discussed.

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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