For laminar diffusion flames, Spalding pioneered the evaluation of the skin friction and the burning rate in terms of an integral approach, while Emmons obtained a similarity solution from a compressible boundary layer formualtion. Following Spalding and Emmons, the laminar theory has been extensively studied, and recent studies include also spread, wake, attachment, buoyancy, radiation, soot and geometry effects. To date, turbulent diffusion flames remained analytically untractable. It is the purpose of this study to introduce a turbulent microscale appropriate for forced diffusion flames and to propose models for fuel consumption and skin friction in terms of this scale.