Investigation of the dynamic behavior of a bluff body diffusion flame using flame emission
- USAF, Aero Propulsion Laboratory, Wright-Patterson AFB, OH
- Dayton, University, Dayton, OH
The evaluation of a research combustor in a study conducted by Roquemore et al. (1980) revealed the presence of unsteady flame behavior in the recirculation zone. The present investigation is concerned with the characteristics of the flame turbules at different air and fuel flow rate conditions. High speed cine pictures and time resolved measurements of CH emissions were used to study the characteristics of the flame turbules. It was found that the velocity of flame turbules is determined by the annulus air jet injection velocity for almost all air and fuel flow conditions studied. The formation of flame turbules downstream of the recirculation zone is believed to occur because combustible fuel and air mixtures escape the recirculation zone in discrete packets separated by very lean regions of noncombustible gases.
- OSTI ID:
- 6719385
- Report Number(s):
- CONF-820106-
- Journal Information:
- Am. Inst. Aeronaut. Astronaut. Monogr.; (United States), Journal Name: Am. Inst. Aeronaut. Astronaut. Monogr.; (United States) Vol. 82-0178; ISSN AIMOD
- Country of Publication:
- United States
- Language:
- English
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