At UME, fluid dynamics reasearch is devoted to non-viscous flows such as those involved around etither sea or ground vehicles for which turbulence is unavoidable. Since transition to turbulence still remains a fundamental issue, it constitutes a central point of research in the fluid dynamics team. Turbulence is then studied in a laboratory experiment in a plan Couette flow. Turbulent wakes are studied and controlled in order to reduce fluid forces acting on moving bodies. In case of air, our researches find their applications for car aerodynamics. In water, cavitation is unavoidable which means that vapor is produced in low pressure regions. From experimental characterizations, cavitation and more generally free surface flows are modeled using numerical simulation of compressible flows. The natural applications of these fundamental studies are naval hydordynamics. However, cavitation is also a powerful tool of large Reynolds number flow visualization that can be used for any complex flows.
The component "Fluid Dynamics" of the DFA team participates to transversal research actions in fields of fluid-structure interaction : vocal chords (bio-mechanics), vibrating cylinders (nuclear plants). The team also studies waveturbulence régimes in thin vibrating plate by collaborating with the "Structure dynamics" component of the DFA team.