Séminaire Rafik Ouchene

Abstract: Widely present in many environmental and industrial applications such as pollen transport, micro-organism turbulent dispersion or wood fibres in paper pulp, non-spherical particle transport in turbulent flows has been increasingly investigated in numerous experimental and numerical studies. Since particles can have an indefinite possibility of shapes and sizes, focus has been put on spheroidal particles that can describe both elongated (fibres of cellulose pulp or straw) and flattened particles (flakes or wood chips). Non-spherical particle motion has been widely investigated in the last decades. An interesting analysis of the different investigations has been provided by Voth and Soldati (Annu. Rev. Fluid Mech 2017). In this talk, some results of the hydrodynamic forces acting on ellipsoidal particles and the transport of such particles in a turbulent channel flow will be addressed.