Experimental study of the effect of rotation on nonlinear internal waves
Experimental study of the effect of rotation on nonlinear internal waves
复制标题
DOI：
10.1063/1.4805092
复制
发表时间：
2013-05
影响因子：
4.6
通讯作者：
R. Grimshaw;K. Helfrich;E. Johnson
中科院分区：
文献类型：
--
作者：
R. Grimshaw;K. Helfrich;E. Johnson
非线性内波是近海中常见的现象。在弱非线性长波状态下，它们通常由Korteweg-de弗里斯方程建模，该方程预测一般局部初始条件的长期结果是一列内部孤立波。然而，当考虑到背景旋转的影响时，从一些理论和数值研究中得知，孤立波的形成被抑制，而是形成非线性波包。在本文中，我们报告的结果，从实验室的实验室实验在LEGI-Coriolis实验室描述了这一过程。
Nonlinear internal waves are commonly observed in the coastal ocean. In the weakly nonlinear long wave regime, they are often modeled by the Korteweg-de Vries equation, which predicts that the long-time outcome of generic localised initial conditions is a train of internal solitary waves. However, when the effect of background rotation is taken into account, it is known from several theoretical and numerical studies that the formation of solitary waves is inhibited, and instead nonlinear wave packets form. In this paper, we report the results from a laboratory experiment at the LEGI-Coriolis Laboratory which describes this process.