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	Provedor de dados ArchiMer (2) Autor Ayet, Alex (2) Chapron, Bertrand (1) Lapeyre, Guillaume (1) Marié, Louis (1) Redelsperger, Jean-luc (1) Palavra-chave Wall-bounded turbulence (2) Wind-waves (2) Air-sea fluxes (1) Airsea interactions (1) Budgets spectraux (1) Flux de quantité de mouvement (1) Génération de vagues (1) Interactions air-mer (1) Momentum flux (1) Spectral budgets (1) Turbulence proche de paroi (1) Vagues de vent (1) Wave boundary layer (1) Wave generation (1) Wind stress (1) Mais... Tipo do documento Text (2) Ano 2020 (2) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Flux de quantité de mouvement à l'interface air-mer : approche théorique du couplage entre turbulence et vagues de vent ArchiMer Ayet, Alex. Despite numerous works, the causal link between wind and waves is still a controversial subject. This is due, among others, to the multi-scale nature of a realistic ocean surface and to wave breaking, which changes its topology. In this thesis, such problems are studied from a theoretical perspective, using a phenomenological model linking the spectral and averaged properties of wall-bounded turbulence through the geometry attached eddies.The first part of the thesis revisits this phenomenological model by questioning its underlying assumptions and, in particular, reveals inconsistencies in the models used for the energy redistribution between turbulence components (the Rotta model). The phenomenological model is then used to study the coupling between... Tipo: Text Palavras-chave: Flux de quantité de mouvement; Turbulence proche de paroi; Budgets spectraux; Vagues de vent; Génération de vagues; Interactions air-mer; Momentum flux; Wall-bounded turbulence; Spectral budgets; Wind-waves; Wave generation; Airsea interactions. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00692/80427/83563.pdf On the Impact of Long Wind-Waves on Near-Surface Turbulence and Momentum Fluxes ArchiMer Ayet, Alex; Chapron, Bertrand; Redelsperger, Jean-luc; Lapeyre, Guillaume; Marié, Louis. We propose a new phenomenological model to represent the impact of wind-waves on the dissipation of turbulence kinetic energy near the sea surface. In this model, the momentum flux at a given height results from the averaged contribution of eddies attached to the sea surface whose sizes are related to the surface geometry. This yields a coupling between long wind-waves and turbulence at heights of about 10 m. This new wind-and-waves coupling is thus not exclusively confined to the short wave range and heights below 5 m, where most of the momentum transfer to the waves is known to occur. The proposed framework clarifies the impact of wind-waves on Monin–Obukhov similarity theory, and the role of long wind-waves on the observed wind-wave variability of... Tipo: Text Palavras-chave: Air-sea fluxes; Wall-bounded turbulence; Wave boundary layer; Wind stress; Wind-waves. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00601/71285/69691.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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