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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 15 — May. 20, 1997
  • pp: 3506–3514

Quantitative technique for imaging mixture fraction, temperature, and the hydroxyl radical in turbulent diffusion flames

James B. Kelman and Assaad R. Masri  »View Author Affiliations


Applied Optics, Vol. 36, Issue 15, pp. 3506-3514 (1997)
http://dx.doi.org/10.1364/AO.36.003506


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Abstract

A technique for obtaining simultaneous quantitative images of the hydroxyl radical, OH, temperature, mixture fraction, and scalar dissipation rates in turbulent diffusion flames is described. Mixture fraction is obtained from images of Rayleigh and fuel Raman scattering. We quantified the OH laser-induced fluorescence (LIF) images using detailed calibration and a correction for quenching and population distribution effects based on the simultaneous mixture fraction and temperature images. This correction was derived from calculations of laminar counterflow diffusion flames for identical fuel mixtures. These laminar flame computations are further used to estimate the errors in the measured OH concentrations. The technique is applied to piloted, nonpremixed flames over a range of jet velocities. The measured mixture fraction, temperature, and OH concentrations are in good agreement with those obtained earlier in similar flames using the single-point Raman/Rayleigh/LIF technique.

© 1997 Optical Society of America

History
Original Manuscript: June 4, 1996
Revised Manuscript: October 25, 1996
Published: May 20, 1997

Citation
James B. Kelman and Assaad R. Masri, "Quantitative technique for imaging mixture fraction, temperature, and the hydroxyl radical in turbulent diffusion flames," Appl. Opt. 36, 3506-3514 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-15-3506

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