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Phase Resolved Laser Diagnostic Measurements of a Downscaled, Fuel Staged Gas Turbine Combustor at Elevated Pressure and Comparison With LES Predictions

[+] Author Affiliations
Klaus Peter Geigle, Manfred Aigner

German Aerospace Center (DLR), Stuttgart, Germany

Wolfgang Meier

German Aerospace Center DLR, Stuttgart, Germany

Chris Willert, Marc Jarius

German Aerospace Center (DLR), Köln, Germany

Patrick Schmitt

CERFACS, Toulouse Cedex, France

Bruno Schuermans

ALSTOM Power Ltd., Baden, Switzerland

Paper No. GT2006-90875, pp. 639-647; 9 pages
doi:10.1115/GT2006-90875
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 1: Combustion and Fuels, Education
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4236-3 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME

abstract

A technical gas turbine combustor has been studied in detail with optical diagnostics for validation of Large-Eddy Simulations (LES). OH* chemiluminescence, OH laser-induced fluorescence (LIF) and particle image velocimetry (PIV) have been applied to stable and pulsating flames up to 8 bar. The combination of all results yielded a good insight into the combustion process with this type of burner and forms a data base which was used for the validation of complex numerical combustion simulations. Large-Eddy Simulations (LES) including radiation, convective cooling and air cooling were combined with a reduced chemical scheme that predicts NOx emissions. Good agreement of the calculated flame position and shape with experimental data was found.

Copyright © 2006 by ASME

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