A multi-scale asymptotic scaling and regime analysis of flamelet equations including tangential diffusion effects for laminar and turbulent flames

Recently, the relevance of tangential diffusion effects has been identified for laminar flames. These effects are not considered in the classical flamelet equations. In the present work, flamelet equations including these effects are derived, and their relevance is investigated by a multi-scale asymptotic scaling analysis. The analysis yields characteristic ratios dependent on the local curvature of the mixture fraction field, the scalar...