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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 6 — Feb. 20, 2003
  • pp: 952–959

Temperature Field Measurements of Small, Nonpremixed Flames with use of an Abel Inversion of Holographic Interferograms

Jonathan D. Posner and Derek Dunn-Rankin  »View Author Affiliations


Applied Optics, Vol. 42, Issue 6, pp. 952-959 (2003)
http://dx.doi.org/10.1364/AO.42.000952


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Abstract

Interferometry has been used for many years as a semi-quantitative image-based diagnostic for combustion research. In this paper, we use image-plane, double-pulse holographic interferograms of axisymmetric flames to infer their radial temperature distribution. An Abel inversion is performed on the fringe data to account for line-of-sight integration through the flame. The sensitivity of nonresonant refractive diagnostics decreases inversely with temperature, and the accuracy of the technique is discussed in this context. A small, nonpremixed capillary flame is investigated, and the temperatures inferred from interferometry are compared with those obtained with N2 coherent anti-Stokes Raman spectroscopy thermometry. Additionally, the thermal field of a burning monodisperse methanol droplet stream is investigated interferometrically. Because of their small size, both of these flames challenge the performance limit of temperature interferometery.

© 2003 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(100.2650) Image processing : Fringe analysis
(110.6960) Imaging systems : Tomography
(110.6980) Imaging systems : Transforms
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry

Citation
Jonathan D. Posner and Derek Dunn-Rankin, "Temperature Field Measurements of Small, Nonpremixed Flames with use of an Abel Inversion of Holographic Interferograms," Appl. Opt. 42, 952-959 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-6-952

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