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Internal gravity waves are an essential feature of flows stratified media, such as oceans and atmospheres. To investigate their dynamics, we perform simulations of the forced-dissipated kinetic equation describing the evolution of the energy spectrum
Externí odkaz:
http://arxiv.org/abs/2407.11469
Autor:
Labarre, Vincent, Lanchon, Nicolas, Cortet, Pierre-Philippe, Krstulovic, Giorgio, Nazarenko, Sergey
We present a new derivation of the kinetic equation for weak, non-hydrostatic internal gravity wave turbulence. The equation is equivalent to the one obtained by Caillol & Zeitlin (2000), but it takes a canonical form. We show that it conserves the e
Externí odkaz:
http://arxiv.org/abs/2311.14370
The comprehension of stratified flows is important for geophysical and astrophysical applications. The Weak Wave Turbulence theory aims to provide a statistical description of internal gravity waves propagating in the bulk of such flows. However, int
Externí odkaz:
http://arxiv.org/abs/2303.01570
Publikováno v:
Phys. Rev. Fluids 8, 053501, (2023)
The study of the transitions among different regimes in thermal convection has been an issue of paramount importance in fluid mechanics. While the bifurcations at low Rayleigh number, when the flow is laminar or moderately chaotic, have been fully un
Externí odkaz:
http://arxiv.org/abs/2301.10833
Autor:
Machicoane, Nathanaël, Labarre, Vincent, Voisin, Bruno, Moisy, Frédéric, Cortet, Pierre-Philippe
Publikováno v:
Physical Review Fluids, 3, 034801 (2018)
We analyze theoretically and experimentally the wake behind a horizontal cylinder of diameter $d$ horizontally translated at constant velocity $U$ in a fluid rotating about the vertical axis at a rate $\Omega$. Using particle image velocimetry measur
Externí odkaz:
http://arxiv.org/abs/1802.07602
Akademický článek
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Autor:
Labarre, Vincent1,2 (AUTHOR) vincent.labarre@lsce.ipsl.fr, Paillard, Didier2 (AUTHOR) didier.paillard@lsce.ipsl.fr, Dubrulle, Bérengère1 (AUTHOR)
Publikováno v:
Earth System Dynamics. 2019, Vol. 10 Issue 3, p365-378. 14p.
Autor:
Labarre, Vincent
Publikováno v:
Climatologie. Université Paris-Saclay, 2020. Français. ⟨NNT : 2020UPASJ001⟩
Like any numerical model, the models usually used to simulate the climate system have a finite resolution, linked to the size of the grid cells on which the model equations are integrated. For a large part of the problems raised in climatology, the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2c80fcb024a008da939da5a9821be539
https://tel.archives-ouvertes.fr/tel-03252542/document
https://tel.archives-ouvertes.fr/tel-03252542/document
Akademický článek
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Publikováno v:
Earth System Dynamics Discussions; 2018, p1-21, 21p