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Waves and coherent structures in terms of the lamb momentum density

  • Chapter VI: Coherent Structures
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Abstract

Waves and vortices are the two very broad classes of fluid motions. In the stratified fluid, the wave and the vortex components coexist and generate each other. This strong interaction makes it difficult to define the components of motions separately but one could try to split the motion into components to a maximal extent. The possible way to achieve the aim is to describe the motion in terms of the Lamb momentum density [1], [2], see also [3]. In the present paper the Lamb momentum density for a viscous stratified fluid is defined and is applied to a set of small scale coherent structures in a stratified fluid. The relation of the present approach to the Weber transformation and its application to the inertial range turbulence is considered.

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Authors and Affiliations

  1. Institute of Thermophysics, 630090, Novosibirsk, Russia

    G. A. Kuz'min

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  1. G. A. Kuz'min
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Kuz'min, G.A. Waves and coherent structures in terms of the lamb momentum density. Appl. Sci. Res. 51, 429–433 (1993). https://doi.org/10.1007/BF01082572

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