A theoretical study of ignition in the laminar mixing layer
The structure of the weakly-reactive states leading to ignition in the laminar mixing layer flow is studied both analytically and numerically. It is shown that the flow consists of a reactive region and a self-similar frozen region separated by a transitional, non-similar frozen region that the reactive region is intrinsically non-similar because of its excessively slow diffusion rate and that the ignition characteristics are primarily governed by the velocity of the hot stream and therefore minimally dependent on the velocity distribution. Fundamental functional groups are identified and an explicit prescription is presented, for large activation energy reactions, for the evaluation of the minimum streamwise distance to achieve ignition.
- Research Organization:
- Northwestern University, Evanston, IL
- DOE Contract Number:
- DE-AC02-77ER-04433 NSF CME-78-20013
- OSTI ID:
- 5670791
- Report Number(s):
- CONF-810804-
- Journal Information:
- AIChE Symp. Ser.; (United States), Vol. 77:208; Conference: 20. national heat transfer conference, Milwaukee, WI, USA, 2 Aug 1981
- Country of Publication:
- United States
- Language:
- English
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