The advancement of a reaction front depends on geometry and confinement and in particular on the physico-chemical and turbulent proper- ties of the gas mixture into which the flame front propagates. Damkohler[1]was the first to present theoretical expression for the turbulent burning velocity at large and small scale turbu- lence. For the large scales he argued that the burning velocity would linearly increase with the wrinkling of the flame surface area which in turn depends linearly on the RMS turbulent velocity v' yielding ΔS_T = S_T-S_F～v', Where S_T and S_F are the turbulent and laminar Flame speed, respectively.
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