Experimental Study of a Reverse Flow Combustor: Influence of Primary Holes on Combustor Efficiency PUBLIC ACCESS

[+] Author Affiliations
Anne Cadiou

Office National d’Etudes et de Recherches Aérospatiales, Châtillon, France

Guy Grienche

Turboméca, Bordes, Bizanos, France

Paper No. 89-GT-249, pp. V003T06A003; 7 pages
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7915-3
  • Copyright © 1989 by ASME


The primary zone of the reverse flow combustors for helicopters tested at ONERA is fed with air from primary holes, multiples holes for the wall cooling and prevaporiser tubes.

The effect of the primary holes on the combustor performances has been studied.

Gas sampling inside the combustor has been achieved in order to understand the flow mechanisms with and without primary holes. The differences observed on the 2 configurations are not significant. Air from the prevaporiser tubes and from the wall cooling is sufficient for the air feeding of the primary zone.

Copyright © 1989 by ASME
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