Phase-Resolved Chemiluminescence of an Acoustically Forced Jet Flame at Frequencies < 60 Hz
- Creators
- Pun, Winston
- Ratner, Albert
- Culick, F. E. C.
Abstract
The California Institute of Technology's Combustion Acoustics Facility is used to measure the response of a partially premixed jet flame to acoustic forcing at frequencies ranging from 22 Hz to 55 Hz. The facility generates bulk acoustic modes that simulate unstable combustor conditions. This same facility and burner has been previously used to measure the phase-resolved response of the OH PLIF field. In this experiment, phase-resolved chemiluminescence measurements are recorded and analyzed. Flame base oscillations are quantified and compared for two different burner configurations. The chemiluminescence also shows that frequencies that exhibit stronger acoustic coupling to the flame tend to have decreased luminosity in the flame stabilization zone, while frequencies with weaker coupling tend to produce greater luminosity at the base of the flame.
Additional Information
© 2002 by the California Institute of Technology. This work was sponsored partly by the California Institute of Technology; partly by a grant under the Defense University Research Instrumentation Program, provided by the Air Force Office of Scientific Research; partly by the Department of Energy, AGTSR Program; and partly by ENEL.Attached Files
Published - 402_Pun_W_2002.pdf
Files
| Name | Size | Download all |
|---|---|---|
|
md5:f3b546e60be2cc9477c12fd787326c68
|
429.4 kB | Preview Download |
Additional details
- Eprint ID
- 20808
- Resolver ID
- CaltechAUTHORS:20101115-105224925
- Air Force Office of Scientific Research
- Department of Energy
- ENEL
- Created
-
2010-11-17Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- Guggenheim Jet Propulsion Center, GALCIT
- Series Name
- AIAA Papers
- Series Volume or Issue Number
- AIAA-2002-0194
- Other Numbering System Name
- AIAA
- Other Numbering System Identifier
- 2002-0194