Αλέξανδρος ΑΛΕΞΑΚΗΣ 

Alexandros ALEXAKIS Office: GH 305 email: alexakis at lps.ens.fr tel: +33 1 44 32 34 72 fax: +33 1 44 32 34 33 
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Laboratoire de Physique Statistique École Normale Supérieure 24, rue Lhomond 75230 Paris Cedex 05 France 
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I am researcher at the Laboratoire de Physique Statistique
at the Ecole Normale Supérieure in Paris,
working with the NonLinear Physics Group .
My research interests lie in the fields of Turbulence, MHD turbulence, Dynamo theory, and their Astrophysical and Geophysical applications.
I am interested in problems in simple geometries, and dynamical equations in their simplest form (neglecting when possible physical effects
like for example compressibility) in order to get a basic understanding of the behavior of a system.
In particular, I would like to address questions regarding the coupling of widely separated scales (multiscale problems);
for example how does a Prandtl number (the ratio of viscosit
y to diffusion coefficient) different than one
can affect the large scale flow in a MHD or a stratified flow? how does a large scale magnetic field or a large scale stratification
affect the small scale turbulence? Can these effects be modeled? Do they predict a behavior that is observed in nature? Analytic methods,
numerical work, and experiments are equally important to address these questions.