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An optimally-controlled RANS Actuator force model for efficient computations of tidal turbine arrays
Publikováno v:
In Ocean Engineering 15 September 2020 212
The effect of a background rotation on the decay of homogeneous turbulence produced by a grid is experimentally investigated. Experiments have been performed in a channel mounted in the large-scale 'Coriolis' rotating platform, and measurements have
Externí odkaz:
http://arxiv.org/abs/0909.2599
Autor:
Chavanis, P. H., Sommeria, J.
Publikováno v:
Phys. Rev. E, 65, 026302 (2002)
We extend the formalism of the statistical theory developed for the 2D Euler equation to the case of shallow water system. Relaxation equations towards the maximum entropy state are proposed, which provide a parametrization of sub-grid scale eddies i
Externí odkaz:
http://arxiv.org/abs/physics/0004056
Autor:
Bouchet, F., Sommeria, J.
We explain the emergence and robustness of intense jets in highly turbulent planetary atmospheres, like on Jupiter, by a general approach of statistical mechanics of potential vorticity patches. The idea is that potential vorticity mixing leads to th
Externí odkaz:
http://arxiv.org/abs/physics/0003079
Autor:
Barge, P., Sommeria, J.
We explore here the idea, reminiscent in some respect of Von Weizsacker's (1944) and Alfven's (1976) outmoded cosmogonies, that long-lived vortices in a turbulent protoplanetary nebula can capture large amount of solid particles and initiate the form
Externí odkaz:
http://arxiv.org/abs/astro-ph/9501050
Open science is commonly discussed within our institutions. National plans have been initiated by the government and this issue raises a lot of questions. The science implies several principles: transparency, reproducibility, efficiency, trust sobrie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::49caec1d83ddb28b164a6cd04a5b56ea
https://hal.archives-ouvertes.fr/hal-03608867
https://hal.archives-ouvertes.fr/hal-03608867
Autor:
Sommeria J., Didelle H.
Publikováno v:
EPJ Web of Conferences, Vol 1, Pp 101-111 (2009)
We discuss how atmospheric or oceanic flow processes can be reproduced at laboratory scale. The similarity conditions for the effects of density stratification and Earth rotation are first presented. It is argued that a large size is required to repr
Externí odkaz:
https://doaj.org/article/e8b26eca820c4060a729f77bb891ca20
Publikováno v:
Proceedings: Mathematical, Physical and Engineering Sciences, 2006 Jan 01. 462(2065), 3-20.
Externí odkaz:
https://www.jstor.org/stable/20208868
Publikováno v:
Journal of Coastal Research, 2006 Jan 01, 682-686.
Externí odkaz:
https://www.jstor.org/stable/25741664