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Entrainment and Flame Geometry of Fire Plumes.


pdf icon Entrainment and Flame Geometry of Fire Plumes. (7143 K)
Cetegen, B. M.; Zukoski, E. E.; Kubota, T.

NBS GCR 82-402; 203 p. August 1982.

Sponsor:

National Bureau of Standards, Gaithersburg, MD

Available from:

National Technical Information Service
Order number: PB83-107847

Keywords:

ceilings; diffusion flames; entrainment; fire plumes; flame size; flame structure; room fires

Abstract:

This study concerns the flame structure and fire plume entrainment of natural gas diffusion flames on 0.10, 0.19 and 0.50m. diameter burners. The heat release rates ranged from 10 kW to 200 kW. Entrainment measurements spanned heights starting very close to the burner surface to distances about six times the average flame heights. Finally, a theoretical study of a steady, buoyant, diffusion flame indicated the importance of the puffing in the entrainment process.