A NUMERICAL-METHOD FOR COMPUTING ASYMPTOTIC STATES AND OUTGOING DISTRIBUTIONS FOR KINETIC LINEAR HALF-SPACE PROBLEMS

Linear half-space problems can be used to solve domain decomposition p roblems between Boltzmann and aerodynamic equations. A new fast numeri cal method computing the asymptotic states and outgoing distributions for a linearized BGK half-space problem is presented. Relations with t he so-called variational methods are discussed. In particular, we stre ss the connection between these methods and Chapman-Enskog type expans ions.