Publication Date:
2019-07-13
Description:
Planar laser-induced fluorescence (PLIF) is used to characterize the complex flowfield of a unique fuel-lean, radially-staged, high pressure gas turbine combustor. PLIF images of OH are presented for two fuel injector configurations. PLIF images of NO, the first acquired at these conditions, are presented and compared with gas sample extraction probe measurements. Flow field imaging of nascent C2 chemiluminescence is also investigated. An examination is made of the interaction between adjoining lean premixed prevaporized (LPP) injectors. Fluorescence interferences at conditions approaching 2000 K and 15 atm are observed and attributed to polycyclic aromatic hydrocarbon (PAH) emissions. All images are acquired at a position immediately downstream of the fuel injectors with the combustor burning JP-5 fuel.
Keywords:
Aircraft Propulsion and Power
Type:
NASA-TM-107373
,
NAS 1.15:107373
,
E-10542
,
Joint Combustion and Propulsion Systems Hazards Subcommittees Meeting; Nov 04, 1996 - Nov 09, 1996; Monterey, CA; United States
Format:
application/pdf
