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Spray droplet modeling: 2. An interactive Eulerian-Lagrangian model of evaporating spray droplets

Abstract : This paper describes an interactive Eulerian-Lagrangian model of the turbulent transport of evaporating droplets. A k-ε (where k is turbulent kinetic energy and ε is its rate of dissipation) turbulence closure model is used to accurately simulate stable, near-neutral, and unstable boundary layers within the large air-sea interaction tunnel at the Institut de Mécanique Statistique de la Turbulence (IMST), Luminy, France. These results are then used with the Lagrangian model described in part 1 [Edson and Fairall, 1994]. The coupled model is shown to give excellent agreement with droplet dispersion measurements made during the 1988 Couche Limite Unidimensionelle Stationnaire d'Embrums (CLUSE, a French acronym that translates to one-dimensional stationary droplet boundary layer) campaign. Additionally, this paper describes how the coupled model can now be used to investigate the interaction between the evaporating droplets and the turbulent fields of temperature and humidity. The investigation shows that although the influence of the droplets is small under the conditions simulated at IMST, the potential for substantial modification of the surface energy budget exists for high-wind conditions over the ocean
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J. Edson, Sandrine Anquetin, P. Mestayer, J. Sini. Spray droplet modeling: 2. An interactive Eulerian-Lagrangian model of evaporating spray droplets. Journal of Geophysical Research. Oceans, Wiley-Blackwell, 1996, 101 (C1), pp.1279-1293. ⟨10.1029/95JC03280⟩. ⟨hal-03306813⟩

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