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Propagation of a premixed flame in a divided-chamber combustorExperimental observations on the propagation of lean premixed ethylene-air flames in a divided-chamber combustion vessel have been compared with the results of numerical simulations based on a flame sheet-vortex dynamics model in axisymmetric coordinates. Flame speeds were found to increase from 10-24 cm/s as the equivalence ratio was varied from 0.5-0.65 in the experiments. Using the associated increase in gas velocity with equivalence ratio, the estimated Reynolds number in the experiment was changed from 1870 to 8090. Good agreement between experimental and theoretical results was obtained for the prechamber flame propagation rates and for the spatial and temporal development of the flame in the main combustion chamber at the lowest Reynolds number.
Document ID
19890062520
Document Type
Reprint (Version printed in journal)
Authors
Cattolica, R. J. (Sandia National Labs. Livermore, CA, United States)
Barr, P. K. (Sandia National Laboratories Livermore, CA, United States)
Mansour, N. N. (NASA Ames Research Center Moffett Field; Sandia National Laboratories, Livermore, CA, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Combustion and Flame
Volume: 77
ISSN: 0010-2180
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Distribution Limits
Public
Copyright
Other