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Wave-Current Interactions in Finite Depth

机译：有限深度的波电流相互作用

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摘要

The energy, momentum, and mass-flux exchanges between surface waves and underlying Eulerian mean flows are considered, and terms in addition to the classical wave "radiation stress" are identified. The formulation is made in terms of the vertically integrated flow. The various terms are identified with other analyses and interpreted in terms of physical mechanisms, permitting reasonable estimates of the associated depth dependencies. One term is identified with the integrated "CL vortex force" implemented, for example, in simulations of Langmuir circulation. However, as illustrated with a simple example of steady refraction across a shear zone, other terms of the same order can significantly alter the results. The classic example of long waves forced by short-wave groups is also revisited. In this case, an apparent singularity arising in shallow water is countered by finite-amplitude dispersion corrections, these being formally of the same order as the forced long-wave response, and becoming significant or dominant as shallow water is approached.
机译：考虑了表面波和潜在的欧拉平均流之间的能量，动量和质通量交换，并确定了除经典波“辐射应力”之外的术语。该配方是根据垂直整合流进行的。各种术语通过其他分析进行标识，并根据物理机制进行解释，从而可以合理估计相关的深度依赖性。用例如在朗缪尔环流的模拟中实现的集成“ CL涡旋力”来标识一个术语。但是，如通过剪切区的稳定折射的简单示例所示，相同阶数的其他项会显着改变结果。还回顾了短波群强迫长波的经典例子。在这种情况下，在浅水中出现的表观奇点可通过有限幅度色散校正来抵消，这些校正形式与强迫长波响应的形式相同，并且在接近浅水时变得显着或占主导地位。

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  • 来源
    《Journal of Physical Oceanography》 |2006年第7期|p.1403-1419|共17页
  • 作者

    JEROME A. SMITH;

  • 作者单位

    Scripps Institution of Oceanography, UCSD, Mail Stop 0213, 9500 Gilman Dr., La Jolla, CA 92093-0213;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋学;
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