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Développement et validation d'un modèle de cavitation à poche sur hydrofoil et pale d'hélice

Article dans une revue avec comité de lecture
Author
PHOEMSAPTHAWEE, Surasak
LEROUX, Jean-Baptiste
LAURENS, Jean-Marc
DENISET, François
13094 Institut de Recherche de l'Ecole Navale [IRENAV]

URI
http://hdl.handle.net/10985/6679
DOI
10.1080/19648189.2008.9693027
Date
2008
Journal
European Journal of Environmental and Civil Engineering

Abstract

FRANCAIS Un module de cavitation à poche a été développé et implémenté sur un code potentiel hélice. La méthode pour représenter la cavitation à poche utilise les vitesses de transpiration qui permettent de dévier la condition de glissement sans modification de la géométrie. Cette modélisation permet une simulation très rapide par rapport aux différentes solutions passant par la résolution des équations de Navier-Stokes en diphasique. Le modèle est validé par comparaison avec des essais expérimentaux sur hydrofoils en 2D et en 3D. Ses performances sont également comparées à d’autres simulations numériques. ENGLISH A sheet cavitation module have been developed and applied in a BEM code for calculating propeller performance. This simulation, in order to represent the sheet cavitation, employs the transpiration velocities technique which allows the deviation of slip condition points without any modification of the geometry. The method provides a very rapid simulation compared to a two-phase Navier-Stokes simulations. The model is validated by comparison with the results of experimental trials performed on hydrofoils in 2D and 3D. Its performances are also compared with other numerical simulations.

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