Présentation du Scientific Breakthrough TurBullet

In spite of its apparent simplicity, the problem of spherical particles settling in a fluid hides a whole hierarchy of rich intricate phenomena, some of which are still shrouded in mystery. The question is by no means just rhetorical, as it impacts numerous real situations, such as the atmospheric dispersion of pollutants, the dynamics of dust in proto-planetary accretion disks, the transport of grains in geophysical flows and sprays in industrial processes to cite just a few examples. Unveiling the fundamental mechanisms of drifting particles (the case of settling corresponding to gravity induced drift) in turbulence has become a crucial issue to improve our capacity to accurately model and predict such particle-laden flows, which are ubiquitous in natural and industrial systems.