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Engine/Airframe Interference on Transport Aircraft with ducted Propfans - The European Research Program DUPRIN -

Hoheisel, H. (1994) Engine/Airframe Interference on Transport Aircraft with ducted Propfans - The European Research Program DUPRIN -. Proceedings 19th ICAS-Congress/AIAA Aircraft Systems Conference 18.-23. September 1994, Anaheim, California, USA.

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Abstract

The cooperative European research program DUPRIN (DUcted PRopfan INvestigations) was started by mid 1990 under Area 5-Aeronautics of the CEC frame program BRITE/EURAM. Main purpose of DUPRIN is to build up the know-how basis, necessary for the new engine types, currently under development. These engines are characterized by very/ respectively ultra-high bypass ratios (VHBR/UHBR), coupled with increasing nacelle diameters and hence requiring a closer coupling with the wing. Based on an existing wing tunnel complete-model of a typical twin-engine transport aircraft, plus one ducted propfan and one turbofan engine simulator, the experimental part of DUPRIN was concentrating first on the completion of the missing hardware. Due to this, a second engine simulator of each type was designed and manufactured. Following the preparation of the model, first wind tunnel tests were performed in the German-Dutch Wing Tunnel (DNW). In relation to the turbofan, the results with the ducted propfan showed an increase in installation- as well as in jet-interference drag. The installation effects were spreading over the major part of the wing span.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1994, pages=17,
Title:Engine/Airframe Interference on Transport Aircraft with ducted Propfans - The European Research Program DUPRIN -
Authors:
AuthorsInstitution or Email of Authors
Hoheisel, H.UNSPECIFIED
Date:1994
Status:Published
Keywords:Engine/Airframe Interference, Transport Aircraft, Ducted Propfans, European Research Program
Event Title:Proceedings 19th ICAS-Congress/AIAA Aircraft Systems Conference 18.-23. September 1994, Anaheim, California, USA
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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