Soutenance de Facundo Cabrera
| Quand ? |
Le 16/12/2021, de 08:00 à 10:00 |
|---|---|
| Où ? | Salle des thèses |
| S'adresser à | Facundo Cabrera |
| Participants |
Facundo Cabrera |
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This thesis presents experimental studies of single inertial particles in two main water fluid configurations: Quiescent Flow and Turbulent Flow. Furthermore, an experimental technique to modify the local gravity pull on magnetic particles, via the application of external magnetic fields, has been developed, validated, and applied to some cases on both fluid configurations. For the 1 mm spherical magnets here utilised, this method allows to reach any value of effective gravity between 0.6g and g. This allows to tune on demand, within a certain range, the Galileo number (and hence the settling regime) of particles in quiescent flow and to vary in the turbulent case their Rouse number independently of Stokes and/or Reynolds numbers, offering a novel approach for sytematic explorations of particle/fluid interactions properties. In parallel, an experimental device that fulfils the constraints of the Dryden Drop Tower in Portland State University (USA) was designed to explore particle/turbulence interactions in micro-gravity (0-g) conditions.