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High-Speed Imaging of Turbulent Nonpremixed Syngas Flames at Elevated Pressures

Flow, Turbulence and Combustion volume 103, pages 871–885 (2019)Cite this article

Abstract

To address the paucity of experimental data on well-documented turbulent jet flames at elevated pressures, a high pressure rig has been used to explore turbulent nonpremixed syngas flames at elevated pressures and very high Reynolds numbers. Composite images of the flames reveal small changes in flame length that are in agreement with previous empirical correlations. OH-PLIF images are used to visualize the flame structure, revealing an OH layer that gets progressively thinner as pressure increases. A corrugation factor is defined and used to show that flame front corrugation is influenced by increases in Reynolds number and axial distance from the nozzle, but not pressure.

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Acknowledgements

The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).

Funding

This study was funded by King Abdullah University of Science and Technology (no grant number).

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Authors and Affiliations

  1. King Abdullah University of Science and Technology (KAUST), CCRC, Thuwal, 23955-6900, Saudi Arabia

    Wesley R. Boyette, Thibault F. Guiberti, Ayman M. Elbaz & William L. Roberts

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  1. Wesley R. Boyette
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  2. Thibault F. Guiberti
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  3. Ayman M. Elbaz
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Correspondence to Wesley R. Boyette.

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Boyette, W.R., Guiberti, T.F., Elbaz, A.M. et al. High-Speed Imaging of Turbulent Nonpremixed Syngas Flames at Elevated Pressures. Flow Turbulence Combust 103, 871–885 (2019). https://doi.org/10.1007/s10494-019-00040-0

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Keywords

  • High pressure
  • Turbulent nonpremixed flames
  • Syngas