[Todos] Coloquios del Departamento de Física

[Pablo Dmitruk]

Les recordamos el coloquio de hoy:


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               COLOQUIOS DEL DEPARTAMENTO DE FÍSICA FCEyN - UBA


                           Charla, café y galletitas
                      En el Aula Federman, 1er piso Pabellón I,
                              Ciudad Universitaria

    Experimental study of the dynamics of material particles in a  
turbulent flow


                      Hoy  jueves 15 de octubre a las 14 hs

                               Mickael Bourgoin

    Laboratoire des Ecoulements Geophysiques et Industriels, Grenoble, Francia


NOTA: La charla será en español.


RESUMEN:
Turbulent transport of material inclusions plays an important role in
many natural and industrial situations. Being able to accurately model
and predict the dynamics of dispersed particles transported by a
turbulent carrier flow remains a challenge. One critical and difficult
point is to correctly describe the turbulent dynamics of particles
over a wide range of sizes and densities. We present high resolution
acoustical Lagrangian measurements of inertial particles transported
in a grid generated turbulent flow. The size of the particles and
their density have been systematically varied. We will present
Lagrangian statistics of the particles dynamics (velocity and
acceleration), which we find to exhibit non trivial, size and density
effects.