Abdoulaye Fall, CNRS researcher in the Rhéophysique et Milieux Poreux group of laboratoire Navier, will defend his Habilitation à Diriger les Recherches (HDR, habilitation to supervise research) entitled « Granular flows: From dry to dense suspensions, Including unsaturated wet behaviors » on Tuesday 17 October, 2023, at amphithéâtre Bienvenüe.