Iraj Mortazavi home page - Research interests
Research  Interests     CV    Habilitation    Papers    Collaborations    Gallery     Links	Key words - Computational Fluid Dynamics, Scientific Computing and Control. Vortex methods, penalization method, vortex dynamics, identification of coherent structures, active control using pulsed and synthetic fluxes, passive control using porous media, coupling active and passive control techniques, random methods, computing and optimizing MEMS flows, particle methods for porous media, modeling and optimizing water distribution systems. Mots clefs - Mécanique des fluids numérique, Calcul Scientifique et Contrôle. méthodes vortex, couplage des contrôles actif et passif, techniques aléatoires, méthode de pénalisation, simulation directe et optimisation des micro-actionneurs, dynamique tourbillonnaire, identification des structures cohérentes, contrôle actif à l’aide des flux pulsés et synthétiques, contrôle passif par des milieux poreux, méthodes particulaires pour des milieux poreux, modélisation des réseaux de distribution d’eau. The aim of my research work is to develop modeling tools for problems of fluid mechanics in order to simulate, explain, predict and manipulate some phenomena coming from physics and engineering (identification of coherent structures, vortex dynamics, control issues, porous media....). The challenges are to develop stable models and adapted numerical methods, that can be used in realistic situations, in order to recover the main physical features of studied phenomena. With these modeling tools, numerical methods that can be used for industrial applications are constructed. These applications cover often practical needs to control vortex flows in the vicinity of solid boundaries. The control consists in modifying the boundary layer properties and vortex shedding procedure in order to reduce aerodynamical forces or regularize the flow. Numerical methods are adapted to specific situations and implemented in some engineering codes. Finally, the obtained results are used to analyze and control different flows. Furthermore, because of the complexity of studied phenomena, special diagnostics tools are built to get a better understanding of flow behavior. Computational techniques are designed related to physical needs (e.g. penalization method, vortex methods...). Various studies, covering different research topics with above mentioned methodology, are described in my HDR (Habilitation à Diriger des Recherches).