CALCUL DE L'ECOULEMENT AUTOUR DES STRUCTURES MINCES PAR LA METHODE DES SINGULARITES. DEVELOPPEMENT DU PRINCIPE DE MINIMISATION ET APPLICATION A DIFFERENTES CONFIGURATIONS SUB- ET PARTIELLEMENT CAVITANTES.

Abstract : A non-linear calculation method of a flow around thin structures using the Boundary Element Method (BEM) has been built. The minimization concept is developed and applied to sub-cavitating, partially cavitating and super-cavitating configurations. This concept relates to the numerical errors occurring on the leak-flows. The non-linear calculation of the cavity geometry is obtained by an iterative procedure. The method is validated by various comparisons of the results with the results of reference extracted from the literature. The case of the blade cascade was treated, the results compared with those obtained with the Finite Elements Method (FEM). The comparison between MEM and FEM is excellent. The method was extended to 3D configurations, in particular for a 3D span-wing under partially cavitation and super-cavitation cases, joined with the presence of a free surface. The 3D case of a rotating propeller was performed, determining the 3D geometry of the downstream wake. The results were confronted with the experimental results.
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Contributor : Christian Pellone <>
Submitted on : Friday, July 11, 2014 - 3:41:11 PM
Last modification on : Thursday, January 3, 2019 - 4:30:09 PM
Long-term archiving on : Saturday, October 11, 2014 - 1:00:28 PM

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  • HAL Id : tel-01023185, version 1

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Christian Pellone. CALCUL DE L'ECOULEMENT AUTOUR DES STRUCTURES MINCES PAR LA METHODE DES SINGULARITES. DEVELOPPEMENT DU PRINCIPE DE MINIMISATION ET APPLICATION A DIFFERENTES CONFIGURATIONS SUB- ET PARTIELLEMENT CAVITANTES.. Mécanique des fluides [physics.class-ph]. Institut National Polytechnique de Grenoble - INPG, 1985. ⟨tel-01023185⟩

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