Soot Escape from Diffusion Flames: A Comparison of Recent Work in this Field

This note compares recent work on flame size and soot escape. The criteria found for soot escape by various workers are in reasonable agreement, differing slightly due to different definitions of the end-point. However, the recent statement is incorrect, that the effect of O(2) concentrations on diffusion flame size disagrees with the theory of Roper. The temperature erect observed is in excellent agreement with this theory. The present work also suggests that buoyancy effects must be included when considering the effects of fuel flowrate on soot escape.