Instability of a Flame Front in a Lean H2-N2O Mixture

preprint2010arXivOpen access

Abstract

Spark ignition and subsequent flame propagation in a premixed, fuel-lean (equivalence ratio of 0.4) H2-N2O mixture are shown in this fluid dynamics video. High-speed schlieren photography was used to visualize the flame propagation and the complex instabilities that developed on the flame surface. The instabilities are a result of the competition between diffusive processes at the flame front and hydrodynamic instability.

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