Coupling Boltzmann and Navier-Stokes equations by friction. (English) Zbl 0860.76080

Bourgat, Jean-François; Le Tallec, Patrick; Tidriri, Moulay D.

J. Comput. Phys. 127, No. 2, 227-245 (1996).

Summary: We introduce and validate a coupled Navier-Stokes Boltzmann approach for the calculation of hypersonic rarefied flows around manoeuvering vehicles. The proposed strategy uses locally a kinetic model in the boundary layer coupled through wall friction forces to a global Navier-Stokes solver. Different numerical experiments illustrate the potentialities of the method.

MSC:

76P05	Rarefied gas flows, Boltzmann equation in fluid mechanics
76M25	Other numerical methods (fluid mechanics) (MSC2010)
76K05	Hypersonic flows

Keywords:

manoeuvering vehicles; kinetic model; boundary layer