THE STRUCTURE IN SLOW-BURNING MIXTURES PART I FLAME STRUCTURE IN SLOW-BURNING MIXTURES OF HYDROCARBONS, AIR AND NITROGEN

摘要

The structure of flames burning in tubes has been studied. Slow-burning flames in rich mixtures of higher hydrocarbons, air and nitrogen were found to assume a cellular structure in the absence of turbulence in the approach stream. Lean mixtures gave smooth disc-shaped flames, the transition from cellular to noncellular flames taking place at stoichiometric composition. Addition of hydrogen caused appearance of cell structure in lean mixtures of all hydrocarbons.