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The 3-D Structure of Swirl-Stabilized Flames in a Lean Premixed Multi-Nozzle Can Combustor

[+] Author Affiliations
Janith Samarasinghe, Stephen J. Peluso, Bryan D. Quay, Domenic A. Santavicca

The Pennsylvania State University, University Park, PA

Paper No. GT2015-42167, pp. V04AT04A015; 12 pages
  • ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
  • Volume 4A: Combustion, Fuels and Emissions
  • Montreal, Quebec, Canada, June 15–19, 2015
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5668-0
  • Copyright © 2015 by ASME


Flame structure is an important aspect of the combustion process which must be considered in the design of gas turbine combustors as it can have a significant effect on the combustor’s static stability (blowoff) and dynamic stability (combustion instability). The relationship between flame structure and flame stability has been studied extensively in single-nozzle combustors. However, relatively few studies have been conducted in multi-nozzle combustor configurations typical of actual gas turbine combustion systems. In this paper, a chemiluminescence-based tomographic reconstruction technique is used to obtain three-dimensional images of the flame structure in a laboratory-scale five-nozzle can combustor. The images reveal the complex three-dimensional structure of this multi-nozzle flame, as well as, the effects of interacting swirling flows, flame-flame interactions and flame-wall interactions on flame structure.

Copyright © 2015 by ASME



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