A multi-relaxation-time discrete Boltzmann model of compressible nonequilibrium reactive flows

Abstract

A multi-relaxation-time discrete Boltzmann model (DBM) is proposed for compressible nonequilibrium reactive flows. The uniform discrete Boltzmann equations are the governing equations of the discrete distribution functions that describe the reactive system. On the right-hand side of the discrete Boltzmann equations, the reaction terms calculated by the inverse matrix method are used to couple chemical reactions and multi-physical fields naturally. Numerical tests show that the DBM is suitable for premixed, non-premixed and partially premixed reactive systems, and is also capable of high-speed compressible reactive flows.