Clustering of inertial particles in shear flows

Particles with finite inertia present anomalous transportproperties such as small scale clustering, a feature usually addressed inhomogeneous and isotropic conditions. Here the effect of the mean shearon the particle clustering is analyzed by using DNS in several configu-rations of shear flows: homogeneous shear, pipe flow, and free jet. Dataevidence that the segregation process is essentially anisotropic, even inthe range of scales where isotropization of velocity statistics already oc-curred. Spatial inhomogeneity adds additional features associated withthe migration of particles towards specific regions of the flow.