TY - JOUR
T1 - DYNAMICS OF STRETCHED FLAMES.
AU - Law, C. K.
N1 - Funding Information:
The author acknowledges with pleasure the technical discussions with and comments from Drs. C, T. Bowman, S. H. Chung, G. H. Markstein, M. Matalon, M. G. Mungal, N. Peters, P. D. Ronney, G. I. Sivashinsky, R. A. Strehlow, H. Tsuji, and F. A. Williams on the various aspects of stretched flames. The continued interest and funding support over the years from NSF, DOE, AFOSR, ARO, and ONR have been essential in the author's pursuit of fundamental combustion research such as the topic reviewed here; the specific efforts on stretched flames have been supported by DOE and AFOSR. The preparation of this manuscript has been ably assisted by Drs. R. L. Axelbaum, B. H. Chao, and S. Nam, and Mr. D. L. Zhu, to whom the author extends his appreciation.
PY - 1984
Y1 - 1984
N2 - Except for some specially-created laboratory-scale flames (e. g. flames stabilized over a flat flame burner or a two-dimensional slot burner), flames are invariably under the influence of stretch. Since stretch can significantly affect the flame behavior, failure to account for its effects can lead to quantitative as well as qualitative errors in the study of fundamental flame phenomena and also in combustor modeling. An important application of the study of stretched flames is turbulent combustion. It is generally accepted that except for the very small scale eddies, a turbulent flame can be modeled as wrinkled laminar flames because the characteristic reaction zone thickness is smaller than the characteristic eddy sizes. These wrinkled laminar flamelets are curved and situated in a highly nonuniform and fluctuating flow field. Thus they are highly stretched flames and should be treated as such. The same applies to the study of large coherent structures in turbulent flames.
AB - Except for some specially-created laboratory-scale flames (e. g. flames stabilized over a flat flame burner or a two-dimensional slot burner), flames are invariably under the influence of stretch. Since stretch can significantly affect the flame behavior, failure to account for its effects can lead to quantitative as well as qualitative errors in the study of fundamental flame phenomena and also in combustor modeling. An important application of the study of stretched flames is turbulent combustion. It is generally accepted that except for the very small scale eddies, a turbulent flame can be modeled as wrinkled laminar flames because the characteristic reaction zone thickness is smaller than the characteristic eddy sizes. These wrinkled laminar flamelets are curved and situated in a highly nonuniform and fluctuating flow field. Thus they are highly stretched flames and should be treated as such. The same applies to the study of large coherent structures in turbulent flames.
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M3 - Conference article
AN - SCOPUS:0021568333
SN - 0277-1128
SP - C. 1-C. 11
JO - Chemical and Physical Processes in Combustion, Fall Technical Meeting, The Eastern States Section
JF - Chemical and Physical Processes in Combustion, Fall Technical Meeting, The Eastern States Section
ER -