Strained Laminar Premixed Flames

Plane, strained premixed flames governed by one-step Arrhenius kinetics are analyzed under conditions where the activation temperature of the reaction is large compared to the temperature of the remote reactants but is comparable to the temperature of the product gas stream. This gives rise to a problem where the activation energy non-dimensionalized with respect to the remote reactant temperature is large but the Zeldovich number is 0( I). In such a formulation the mass burning rate found at the inflection point of the temperature profile and the mass burning rate at the point where the second derivative of the temperature profile is minimized are distinctly different functions of the flame stretch.