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Etude numérique de la cavitation avec effet thermodynamique

Abstract : Correlated experimental and numerical studies were carried out to analyse cavitating flows in Venturi geometries. By applying a computational method previously developed in Laboratory LEGI based on the code Fine™!Turbo and on a barotropic approach Delannoy et al. (1990), Coutier et al. (2005), Pouffary et al. (2005), the physical and numerical models were improved to take into account thermodynamic effects. As a matter of fact, be cause of the latent he at of vaporization, he at transfer may strongly affect the cavitation behaviour of refrigerants and cryogenie fluids. Vapour production through cavitation extracts heat from surrounding liquid and produces a local cooling effect, which delays the cavitation phenomenon. A first application of the madel is carried out for a Venturi geometry in the case of R114 flow s. Global et and local numerical results were analyzed. Local void ratio, cooling, and wall pressure are in good agreement with experimental data, Fruman et al., (1999).
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  • HAL Id : hal-00266091, version 1




Julien Rolland, Eric Goncalvès da Silva, Regiane Fortes Patella. Etude numérique de la cavitation avec effet thermodynamique. 18e Congrès Français de Mécanique, Aug 2007, Grenoble, France. ⟨hal-00266091⟩



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