Numerical modelling of flux spectra for the case of angular anisotropy

Numerical modelling of flux spectra for the case of angular anisotropy On the basis of numerical solution of a kinetic equation governing non-linear wave energy redistribution over the spectrum from sourceG to sinkD, it has been found that spectra of constant flux occur in the case of anisotropic distribution of the source (or sink) with respect to angle. It has been shown that with sourceG(ω) localized in the upper part of the frequency band, as compared with the sink localization area,D(ω), a flux spectrum that is anisotropic with respect to angle is realized. WithG(ω) andD(ω) being inversely located, the stabilized flux spectrum is essentially anisotropic with respect to angle. Unidimensional stabilized spectraS(ω), averaged by angle, then have power functions similar to those of the isotropic case of source/sink distribution studied by Zakharov in 1996. Spectral characteristics have been obtained and the calculated results interpreted. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Oceanography Springer Journals

Numerical modelling of flux spectra for the case of angular anisotropy

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1998 by VSP
Subject
Earth Sciences; Oceanography; Remote Sensing/Photogrammetry; Atmospheric Sciences; Climate Change; Environmental Physics
ISSN
0928-5105
eISSN
0928-5105
D.O.I.
10.1007/BF02522734
Publisher site
See Article on Publisher Site

Abstract

On the basis of numerical solution of a kinetic equation governing non-linear wave energy redistribution over the spectrum from sourceG to sinkD, it has been found that spectra of constant flux occur in the case of anisotropic distribution of the source (or sink) with respect to angle. It has been shown that with sourceG(ω) localized in the upper part of the frequency band, as compared with the sink localization area,D(ω), a flux spectrum that is anisotropic with respect to angle is realized. WithG(ω) andD(ω) being inversely located, the stabilized flux spectrum is essentially anisotropic with respect to angle. Unidimensional stabilized spectraS(ω), averaged by angle, then have power functions similar to those of the isotropic case of source/sink distribution studied by Zakharov in 1996. Spectral characteristics have been obtained and the calculated results interpreted.

Journal

Physical OceanographySpringer Journals

Published: Oct 21, 2006

References

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