Zobrazeno 1 - 10
of 114
pro vyhledávání: '"SOMMERIA, JOEL"'
We describe laboratory experiments in a 2D wave tank that aim at building up and monitor 2D shallow water soliton gas. The water surface elevation is obtained over a large ($\sim 100\,\text{m}^2$) domain, with centimetre-resolution, by stereoscopic v
Externí odkaz:
http://arxiv.org/abs/2405.14733
Autor:
Rodda, Costanza, Savaro, Clément, Bouillaut, Vincent, Augier, Pierre, Sommeria, Joël, Valran, Thomas, Viboud, Samuel, Mordant, Nicolas
We report on the statistical analysis of stratified turbulence forced by large-scale waves. The setup mimics some features of the tidal forcing of turbulence in the ocean interior at submesoscales. Our experiments are performed in the large-scale Cor
Externí odkaz:
http://arxiv.org/abs/2311.13476
Autor:
Frank, Natalie Violetta, Negretti, Maria Eletta, Sommeria, Joel, Obligado, Martín, Cal, Raúl Bayoán
The physical growth of wind energy over several decades, caused a re-investigation mesoscale effects on wind plant dynamics. At a large scale operation, understanding the interactions between atmospheric phenomena and wind plant wakes is crucial to i
Externí odkaz:
http://arxiv.org/abs/2308.01428
Autor:
Rodda, Costanza, Savaro, Clément, Davis, Géraldine, Reneuve, Jason, Augier, Pierre, Sommeria, Joël, Valran, Thomas, Viboud, Samuel, Mordant, Nicolas
Recent developments of the weak turbulence theory applied to internal waves exhibit a power-law solution of the kinetic energy equation close to the oceanic Garrett \& Munk spectrum, confirming weakly nonlinear wave interactions as a likely explanati
Externí odkaz:
http://arxiv.org/abs/2209.03616
Autor:
Fu, Minghan, Han, Guoqing, Lu, Xiaojie, Sun, Wenjin, Sommeria, Joel, Stegner, Alexandre, Caldeira, Rui M.A., Dong, Changming
Publikováno v:
In Progress in Oceanography March 2024 222
Publikováno v:
J.Fluid Mech, 424, 75-100 (2000)
This paper presents a model for quasi two-dimensional MHD flows between two planes with small magnetic Reynolds number and constant transverse magnetic field orthogonal to the planes. A method is presented that allows to take 3D effects into account
Externí odkaz:
http://arxiv.org/abs/2006.15468
Autor:
Savaro, Clément, Campagne, Antoine, Linares, Miguel Calpe, Augier, Pierre, Sommeria, Joël, Valran, Thomas, Viboud, Samuel, Mordant, Nicolas
Publikováno v:
Phys. Rev. Fluids 5, 073801, 2020
We investigate experimentally stratified turbulence forced by waves. Stratified turbulence is present in oceans and it is expected to be dominated by nonlinear interaction of internal gravity waves as described by the Garrett & Munk spectrum. In orde
Externí odkaz:
http://arxiv.org/abs/2006.14241
Publikováno v:
C.R. Acad. Sci., t328, S\'erie IIb, 1229-1234 (2000)
A new model is proposed for low $Rm$ MHD flows which remain turbulent even in the presence of a magnetic field. These flows minimize the Joule dissipation because of their tendency to become two-dimensional and, therefore to suppress all induction ef
Externí odkaz:
http://arxiv.org/abs/2006.12788
Publikováno v:
J.Fluid Mech., 534, 115-143 (2005)
This paper presents simulations of the 2d model developed by Poth\'erat at al (\emph{J. Fluid Mech}, 2000) for MHD flows between two planes with a strong transverse homogeneous and steady magnetic field, accounting for moderate inertial effects in Ha
Externí odkaz:
http://arxiv.org/abs/2006.11550
Publikováno v:
Phys. Fluids, 14 (1), 403-410 (2002)
Here we build some effective boundary conditions to be used in numerical calculations in order to avoid the thin meshing usually required in problems involving Hartmann layers near a locally plane wall. Wall model are provided for both tangential and
Externí odkaz:
http://arxiv.org/abs/2006.06973