Apprentissage de la simulation numérique en mécanique des fluides avec

le progiciel ANSYS-Fluent

Most of the course uses problem sheets to introduce concepts and solution methods. Introduction: applications, flow regimes. The first main part of the course is on the analysis of axisymmetric potential and Stokes flows past single particles/droplets/bubbles, using multipole expansions. Cavitation, collapsing bubbles. Concept of added mass. Levich drag. Derivation of drag force on small particulates in Stokes flow. Formulation of force balance for particulates, Lagrangian tracking. This is followed by the derivation of averaged equations and the introduction of effective transport properties, using as a starting point the Maxwell effective conductivity of a mixture of spheres. Einstein viscosity. Averaged equations for the flow of suspensions; shear-induced diffusion. Drift-flux models. Kinematic waves and shocks. In the third part of the course, we analyze the linear instability of separated flows: Rayleigh-Taylor instability, and the Rayleigh instability of a liquid thread. The course is concluded with a brief review of CFD methods for multiphase flows (MCFD).
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Evaluation des enseignements pour le Master 2 professionnel 2007-2008