Intrinsic flame instabilities

A flame may exhibit intrinsic instabilities of several kinds when one or more of the physico-chemical balances associated with its propagation is offset. In premixed flames, the primary instability is a hydrodynamic instability — known as the Darrieus-Landau instability — which results from thermal expansion across the flame interface.[1] In non-premixed (diffusion) flames, thermo-diffusive instabilities are predominant while the hydrodynamic instability plays a secondary role.

## References

1. ↑ Matalon, Moshe (2006-12-20). "Intrinsic Flame Instabilities in Premixed and Nonpremixed Combustion" (in en). Annual Review of Fluid Mechanics 39 (1): 163–191. doi:10.1146/annurev.fluid.38.050304.092153. http://annualreviews.org/doi/abs/10.1146/annurev.fluid.38.050304.092153.

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