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, 2015-10-25 - 2015-10-30, Phoenix, Az, USA.
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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/ | ||||||||||||||||||||
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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: |
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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 Start Date: | 25 October 2015 | ||||||||||||||||||||
Event End Date: | 30 October 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: | 24 Apr 2024 20:07 |
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