An Asymptotic Analysis of Supersonic Reacting Mixing Layers

Abstract

The purpose of this paper is to present an asymptotic analysis of the laminar mixing of and the simultaneous chemical reaction between parallel supersonic streams of two reacting species. The study is based on a one-step irreversible Arrhenius reaction and on large activation energy asymptotics. Esssenlially it extends the work of Linan and Crespo to include the effect of free shear and Mach number on the ignition regime, the deflagration regime and the diffusion flame regime. It is found that the effective parameter is the product of the characteristic Mach number and a shear parameter.