Dongshin Shin/Heejung Hong
The Journal of Mechanical Science and Technology, vol. 23, no. 12, pp.3479-3484, 2009

Abstract : This paper investigates the linear stability of compressible reacting mixing layers with special emphasis on threedimensionality. The governing equations for laminar flows are from two-dimensional compressible boundary-layer equations. The chemistry is a finite rate single step irreversible reaction with Arrhenius kinetics. For incompressible reacting mixing layers, two-dimensional outer modes are more amplified than three-dimensional ones. For compressible non-reacting mixing layers at Mc >0.6 , the most unstable modes are oblique center modes that are subsonic relative to both free streams. For compressible reacting mixing layers with Tad >3 , the most unstable modes are twodimensional outer modes even at high Mach numbers. Three-dimensional modes agree well with experimental data compared to two-dimensional modes.

Keyword : At least four keywords; Compressible mixing layer; Instability; Reacting shear flow; Three-dimensionality