Arnold WAKIM a effectué son année ARPE au sein de l'UCSB (University of California Santa Barbara) en 2014-2015.
Gravity currents refer to flows in a gravitational field. Such flows are driven by a density difference where a denser fluid propagates through a lighter fluid, and the motion is therefore
mainly in the horizontal direction.
For example, pouring water on a plane forms a gravity current because of the density difference between water and air.
From pyroclastic flows to submarine avalanches, gravity currents occur in a wide variety of natural scenarii. Therefore it is essential to study such currents.