Structure and Extinction of Hydrogen-Air Diffusion Flames

Hydrogen is a fuel of practical interest in high-speed air-breathing combustion, where effects of finite-rate chemical kinetics are expected to play a significant role as a consequence of the short characteristic flow times. Associated combustion problems may be investigated by considering laminar, counterflow configurations, where high strain rates encountered in high-speed combustion cause effects of chemical nonequilibrium to become important. The present chapter concerns the structures and extinction characteristics of these flames. It expands on material of the preceding chapter, in which background references are reviewed.