Flame/Turbulence Interactions in Premixed Stagnating Flows
نویسنده
چکیده
Unsteady simulations of stagnation point flames are conducted in order to study flame turbulence interactions in a relatively simple flow environment. Flame propagation is represented using a flamelet model called the G equation. Two subgrid models are used to close the filtered G equation. The effects of significant heat release on the turbulent flow and the effect of varying turbulence intensity on the flame structure have been studied. The results show that at low turbulence intensities, the heat release dramatically alters the flow field and as the intensity is increased, heat release has a dimishing effect. The turbulent flame speeds are also shown to be in reasonable quantitative agreement with experimental data.
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