Experiments in Fluids

, Volume 17, Issue 5, pp 330–336 | Cite as

A combined OH/acetone planar laser-induced fluorescence imaging technique for visualizing combusting flows

  • B. Yip
  • M. F. Miller
  • A. Lozano
  • R. K. Hanson
Originals

Abstract

A combined OH/acetone planar laser-induced fluorescence (PLIF) imaging technique that provides simultaneous visualizations of regions of unburned fuel and of combustion in a reacting flow is described. OH marks the location of chemical reaction and of combustion products, and acetone vapor, which is seeded into the fuel stream, marks unburned fuel. A single pulse from an ultraviolet laser is used to simultaneously excite both the OH and acetone, and the fluorescence from each is detected on separate cameras. Acetone spectroscopy and chemistry are reviewed to provide a basis for interpreting acetone fluorescence signals in high-temperature combusting environments. The imaging technique is applied to two nonpremixed turbulent reacting flows to assess the utility of the technique for visualizing the instantaneous flow structure and to illustrate the dependence of the interpretation of the acetone PLIF images on the flow conditions.

Keywords

Combustion Imaging Technique Combustion Product Single Pulse Instantaneous Flow 

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • B. Yip
    • 1
  • M. F. Miller
    • 1
  • A. Lozano
    • 1
  • R. K. Hanson
    • 1
  1. 1.High Temperature Gasdynamics Laboratory, Mechanical Engineering DepartmentStanford UniversityStanfordUSA

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