SIMILARITY SOLUTIONS OF 2-VELOCITY MODELS OF THE EXTENDED BOLTZMANN-EQUATION

We analyse, in the frame of the extended kinetic theory, travelling wa ve solutions for the 2-velocity discrete models of the Boltzmann equat ion. The extended formalism allows for absorption, creation, due to sc attering with a background as well as for the existence of external so urces of test particles. As a preliminary step, existence, uniqueness and stability of equilibrium states are investigated. We find new, sol ition-like solutions, and analyse their dependence on the physical par ameters of the model.