Propagation et réflexion de la marée interne: une étude numérique et expérimentale.

Abstract : This manuscript presents the results of a numerical and experimental study on the internal tide and the interaction of the internal tide with a continental slope in a stratified fluid in the case of a super-critical slope. The numerical study is based on theMITgcm code, which solves the non-linear and not-hydrostatic Navier-Stokes equations by employing a technique of finite volume. The experiments are carried on the big tank's rotating of Coriolis, LEGI by using the techniques PIV and CIV. We studied the propagation and the reflection of the internal tide in the presence of rotation and without rotation. Our outstanding results are the generation of internal waves beams at the frequency harmonic of the frequency of forcing, by interaction of the incident beams and reflected beams on the bottom of the tank, the occurrence of a parametric instability sub-harmonic in the incidental beam and the definition and the study of the width of the beam according to the parameters of forcing and of rotation.
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https://tel.archives-ouvertes.fr/tel-00339961
Contributor : Mahdi Mohammad Mahdizadeh <>
Submitted on : Friday, November 28, 2008 - 11:37:00 AM
Last modification on : Thursday, January 3, 2019 - 4:30:08 PM
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Mahdi Mohammad Mahdizadeh. Propagation et réflexion de la marée interne: une étude numérique et expérimentale.. Océan, Atmosphère. Université Joseph-Fourier - Grenoble I, 2008. Français. ⟨tel-00339961⟩

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