An experimental study on extinction and stability of stretched premixed flamesLaw et al. (1981) and Ishizuka et al. (1982) have experimentally investigated the effects of flame stretch, preferential diffusion, and downstream heat loss on the extinction and stability of propane/air flames. The obtained results suggest that in the case of rich propane/air mixtures downstream heat loss, in addition to flame stretch, is needed for flame extinction. In the case of lean mixtures, flames can be extinguished by flame stretch alone. The data obtained in connection with the present study provide convincing evidence regarding the correctness of the previous results on the nature of flame extinction due to stretch. It is found that, in accordance with theoretical predictions, extinction by stretch alone is possible only when there is a deficiency regarding the less mobile reactant.
Document ID
19840052638
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ishizuka, S. (Saitama Institute of Technology Okabe, Japan)
Law, C. K. (Northwestern University Evanston, IL, United States)