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EVALUATION OF THE INFLUENCE OF FLUIDIC CONTROL ON AIR FLOW DISTRIBUTION AND FUEL SPLIT VARIATION OF A STAGED LEAN JET ENGINE BURNER AT IDLE AND CRUISE CONDITION

Hassa, C. and Yoshida, Seiji and Schneider, Denis and Lange, Lena (2015) EVALUATION OF THE INFLUENCE OF FLUIDIC CONTROL ON AIR FLOW DISTRIBUTION AND FUEL SPLIT VARIATION OF A STAGED LEAN JET ENGINE BURNER AT IDLE AND CRUISE CONDITION. In: ISABE 2015. International Association of Airbreathing Engines. 22nd ISABE Conference, 25.-30.10.2015, Phoenix, Az, USA.

Full text not available from this repository.

Official URL: http://ISABE2015.org

Abstract

In a cooperation of DLR and JAXA, a staged jet engine burner has been investigated, which is a derivate of the JAXA TechCLEAN burner. It is equipped with a fluidic diverter allowing variation of the air distribution between pilot and main stage. The reacting flowfield issuing from the burner has been investigated with and without fuel and fluidic air staging in an optically accessible single sector combustor at medium pressure using Laser-spectroscopic methods at conditions related to idle and cruise. The results show that the fluidic device influences the flow field directly by shifting the air and thereby zonal stoichiometry, and indirectly by modification of the piloting effect on local stabilization and combustion intensity. The latter effect can be the stronger one, since those changes can lead to amplification caused by the nonlinear dependence of heat release on local mixture fraction. With air flow splits and fuel schedule properly scaled, this can be used to extend the range of stable and efficient operation by a greater margin than would be expected from the amount of shifted air alone.

Item URL in elib:https://elib.dlr.de/101784/
Document Type:Conference or Workshop Item (Speech)
Title:EVALUATION OF THE INFLUENCE OF FLUIDIC CONTROL ON AIR FLOW DISTRIBUTION AND FUEL SPLIT VARIATION OF A STAGED LEAN JET ENGINE BURNER AT IDLE AND CRUISE CONDITION
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hassa, C.AT-BRKUNSPECIFIED
Yoshida, SeijiJAXAUNSPECIFIED
Schneider, DenisAT-BRKUNSPECIFIED
Lange, LenaAT-OTMUNSPECIFIED
Date:25 October 2015
Journal or Publication Title:ISABE 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:International Association of Airbreathing Engines
Series Name:ISABE Conference Proceedings
Status:Published
Keywords:Aeroengine, combustor, lean burn, Fluidics, laser diagnostics
Event Title:22nd ISABE Conference
Event Location:Phoenix, Az, USA
Event Type:international Conference
Event Dates:25.-30.10.2015
Organizer:International Association of Airbreathing Engines
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Combusion Chamber Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Combustor
Deposited By: Hassa, Dr.-Ing. Christoph
Deposited On:07 Jan 2016 09:49
Last Modified:10 May 2016 23:41

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