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arXiv 1609.09574nlin.PS
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耦合KdV方程辐射问题的多尺度分析

Multiple-scale analysis on the radiation within the coupled KdV equations

Yezheng Li, Joseph A. Biello, Yerong Li

摘要:

本文建立了一个非线性耦合KdV方程的多尺度模式,预报了一定情况下赤道Rossby波与正压波相互作用的机制。分析上,预测的前兆辐射是一个中心对称的对象,并显示在良好的定量协议与数值模拟,此外,多尺度模型阐明孤立波的相互作用和辐射的机制的显着机制。虽然大气-海洋科学界对热带波相互作用的理论研究和开发可以解释赤道现象的一些关键特征的简化动力学模型非常感兴趣,但我们的分析预测定量地解释了Biello模型中相互作用过程中辐射的形成。

英文摘要:

A multiple scale model of the nonlinearly coupled KdV equations is established to predict mechanism of interaction of equatorial Rossby waves and barotropic waves in certain case. Analytically, predicted precursor radiation is a centrosymmetric object and is shown in excellent quantitative agreement with numerical simulations; furthermore, the multiple scale model elucidates the salient mechanisms of the interaction of solitary waves and the mechanism for radiation. While the atmosphere-ocean science community is very interested in theoretical studies of tropical wave interactions and in developing reduced dynamical models that can explain some key features of equatorial phenomena, our analytic predictions quantitively explain formation of radiation during interaction in Biello's model beyond qualitative level.

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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