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NUMERICAL POSITION OPTIMIZATION OF AN OVER-THE-WING MOUNTED ENGINE INSTALLATION

Lange, Fabian and Rudnik, Ralf (2019) NUMERICAL POSITION OPTIMIZATION OF AN OVER-THE-WING MOUNTED ENGINE INSTALLATION. Deutscher Luft- und Raumfahrtkongress 2019, 30.9.-02.10.2019, Darmstadt, Deutschland. (Submitted)

Full text not available from this repository.

Abstract

The Collaborative Research Center 880 is investigating different technologies and configurative variants for the purpose of short take-off and landing (STOL) capabilities, ranging from high-lift systems with Coanda flaps to unusual but potentially more efficient engine arrangements. The present study focuses on the reference configuration 3 (REF3). This configuration is characterized by an UHBR over-the-wing nacelle (OWN) located above the wing trailing edge. Starting from the wing/body configuration the installation effects of the OWN were investigated. A fully automatized surrogate based optimization was used to evaluate the impact of an engine position variation in vertical and horizontal direction to observe fundamental aerodynamic interactions between wing and OWN in cruise flight conditions. Due to the presence of OWN and pylon, a distinct disturbance on the wing upper surface could be observed leading to significant interference effects. Nevertheless, the overall cruise drag of REF3 could be improved by 37 drag counts or nearly 11% due to the position optimization.

Item URL in elib:https://elib.dlr.de/131023/
Document Type:Conference or Workshop Item (Speech)
Title:NUMERICAL POSITION OPTIMIZATION OF AN OVER-THE-WING MOUNTED ENGINE INSTALLATION
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lange, FabianFabian.Lange (at) dlr.deUNSPECIFIED
Rudnik, RalfRalf.Rudnik (at) dlr.deUNSPECIFIED
Date:2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Submitted
Keywords:SFB880, OWN, Optimization
Event Title:Deutscher Luft- und Raumfahrtkongress 2019
Event Location:Darmstadt, Deutschland
Event Type:national Conference
Event Dates:30.9.-02.10.2019
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Lange, Fabian
Deposited On:03 Dec 2019 14:35
Last Modified:03 Dec 2019 14:35

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