Développement d’une méthode numérique compressible pour la simulation de la cavitation en géométrie complexe.

Abstract : Cavitation is a phase change phenomenon, wich occurs in low pressure areas in hydraulic systems. Its consequences are often harmful and undesired : it causes loss of efficiency, noise and vibration generation, and structural abrasion... These effects become a major preoccupation in the conception of hydraulic systems. The main objective of this work is to develop a numerical tool for the numerical modelisation of cavitation at high orders of accuracy, for compressible and viscous flows, in complex geometries. The model used for the modelisation of the cavitation is the homogeneous mixture model, wich formulation is independent of empirical parameters, and is easily extendable for multi-spieces flows. We use a finite volume developped in the DynFluid laboratory, in wich the high accuracy order of reconstruction is obtained using the Moving Least Square approximation.
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Lionel Bergerat. Développement d’une méthode numérique compressible pour la simulation de la cavitation en géométrie complexe.. Autre. Ecole nationale supérieure d'arts et métiers - ENSAM, 2012. Français. ⟨NNT : 2012ENAM0051⟩. ⟨pastel-00841764⟩

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