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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 3 — Jan. 20, 2005
  • pp: 445–454

Simultaneous planar laser-induced incandescence, OH planar laser-induced fluorescence, and droplet Mie scattering in swirl-stabilized spray flames

Terrence R. Meyer, Sukesh Roy, Vincent M. Belovich, Edwin Corporan, and James R. Gord  »View Author Affiliations


Applied Optics, Vol. 44, Issue 3, pp. 445-454 (2005)
http://dx.doi.org/10.1364/AO.44.000445


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Abstract

Simultaneous planar laser-induced incandescence, hydroxyl radical planar laser-induced fluorescence, and droplet Mie scattering are used to study the instantaneous flame structure and soot formation process in an atmospheric pressure, swirl-stabilized, liquid-fueled, model gas-turbine combustor. Optimal excitation and detection schemes to maximize single-shot signals and avoid interferences from soot-laden flame emission are discussed. The data indicate that rich pockets of premixed fuel and air along the interface between the spray flame and the recirculation zone serve as primary sites for soot inception. Intermittent large-scale structures and local equivalence ratio are also found to play an important role in soot formation.

© 2005 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(290.0290) Scattering : Scattering
(300.0300) Spectroscopy : Spectroscopy
(300.2530) Spectroscopy : Fluorescence, laser-induced

History
Original Manuscript: December 22, 2003
Revised Manuscript: June 28, 2004
Manuscript Accepted: October 6, 2004
Published: January 20, 2005

Citation
Terrence R. Meyer, Sukesh Roy, Vincent M. Belovich, Edwin Corporan, and James R. Gord, "Simultaneous planar laser-induced incandescence, OH planar laser-induced fluorescence, and droplet Mie scattering in swirl-stabilized spray flames," Appl. Opt. 44, 445-454 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-3-445


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