207 Diffusive-thermal instability of premixed flames under the low temperature environment : numerical simulation based on the model equation

The diffusive-thermal instability of premixed flames under the low temperature environment was studied by unsteady calculations of reactive flows based on the model equation. As the unburned-gas temperature became lower, the growth rate decreased and the unstable range narrowed at Lewis numbers lower than unity, which was due to the decrease of the burning velocity of a planar flame. As for the growth rate and unstable range normalized by the...