Mécanismes de transfert au sein d'une couche de glace en développement en présence d'un écoulement turbulent : approches expérimentale et numérique

Abstract : The study concerns the de-sublimation of a thermally controlled flat plate placedwithin a wind tunnel in which develops a turbulent moist air flow. A parametric analysis of the influence of humidity and the velocity of the flow on the ke formation was carried out and, from the measurement of global heat flux, it is possible to estimate the convective heat transfer with the presence of ice. The results show that the convective fluxes are more or less accentuated depending on the humidity. A solver to modeling of air - vapor/ice, was developed base on the theory of nucleation heterogeneous. Beyond simple geometry such as a flat plate, a characteristic geometry of a heat ex.changer was also simulated in particular to qualitatively characterize the ice formation mechanisms of such systems.
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Duc Manh Huynh. Mécanismes de transfert au sein d'une couche de glace en développement en présence d'un écoulement turbulent : approches expérimentale et numérique. Autre. ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2015. Français. ⟨NNT : 2015ESMA0018⟩. ⟨tel-01281936⟩

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