LAUSR

We study the gravity-driven Poiseuille flow of a dilute binary granular mixture and report results on the hydrodynamic fields and species segregation. Direct Simulation Monte Carlo method is employed for a 50:50 binary mixture of different density, but same size particles with athermal channel walls. Effect of the mass bidispersity on velocity, granular temperature and number-density profiles is detailed, along with a quantification of energy non-equipartition in this flow. We uncover a non-monotonic species segregation along with a decreasing global segregation with increasing mass ratio.