TY - GEN
T1 - Simultaneous OH-PLIF/PAH-PLIF/LII on high-Reynolds number turbulent jet diffusion flames at elevated pressure
AU - Boyette, Wesley
AU - Bennett, Anthony
AU - Sampath, Ramgopal
AU - Guiberti, Thibault
AU - Roberts, William L.
N1 - KAUST Repository Item: Exported on 2022-02-17
Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
PY - 2019/1/1
Y1 - 2019/1/1
N2 - While it is known that the production of soot is highly dependent on pressure, very little experimental data on sooting turbulent flames at elevated pressures exists in the literature. In this study, three piloted turbulent nonpremixed ethylene-nitrogen jet flames are examined over a range of pressures and Reynolds numbers. Simultaneous PLIF/LII is used to characterize the spatial distributions of OH, PAH, and soot. As with previous experiments at atmospheric pressure, all of the flames are characterized by a soot formation region, followed downstream by a region of turbulent mixing, and finally a soot oxidation region. The soot concentration increases with pressure (and Reynolds number), while the soot intermittency decreases. The maximum mean soot volume fraction scales with p2.1.
AB - While it is known that the production of soot is highly dependent on pressure, very little experimental data on sooting turbulent flames at elevated pressures exists in the literature. In this study, three piloted turbulent nonpremixed ethylene-nitrogen jet flames are examined over a range of pressures and Reynolds numbers. Simultaneous PLIF/LII is used to characterize the spatial distributions of OH, PAH, and soot. As with previous experiments at atmospheric pressure, all of the flames are characterized by a soot formation region, followed downstream by a region of turbulent mixing, and finally a soot oxidation region. The soot concentration increases with pressure (and Reynolds number), while the soot intermittency decreases. The maximum mean soot volume fraction scales with p2.1.
UR - http://hdl.handle.net/10754/666460
UR - http://www.combustionsociety.jp/aspacc19/program_final0711.html#CH0238
UR - http://www.scopus.com/inward/record.url?scp=85083952655&partnerID=8YFLogxK
M3 - Conference contribution
BT - 12th Asia-Pacific Conference on Combustion, ASPACC 2019
PB - Combustion Institute
ER -