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ABSTRACT
Flame spread over methanol in the uniform, near-flash regime is simulated by means of a two-dimensional, unsteady mathematical model including the description of gravity effects, surface-tension variations along the liquid/gas interface, fuel vaporization, chemical reactions, convection and diffusion of mass, momentum and energy for the liquid and the gas phase. In agreement with experiments, liquid-phase, surface-tension-driven flows, which play a fundamental rote for pulsating spread conditions, also contribute, through concective heat transfer, to uniform near-flash flame spread.