Dissipative hydrodynamic models for the diffusion of impurities in a gas
  Recently linear dissipative models of the Boltzmann equation have been introduced. In this work, we consider the problem of constructiing suitable hydrodynamic approximations for such models where the mean velocity and the temperature of inelastic particles appear as independent variables. 
Stephane Brull (LATP), Lorenzo Pareschi (ADMLM)