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Numerical Investigation of Engine Effects on a Transport Aircraft with Circulation Control

Keller, Dennis and Rudnik, Ralf (2015) Numerical Investigation of Engine Effects on a Transport Aircraft with Circulation Control. Journal of Aircraft, 52 (2), pp. 421-438. American Institute of Aeronautics and Astronautics (AIAA). ISSN 0021-8669

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The scope of this paper is to illustrate the installation effects of a turboprop engine on a high-lift configuration of a short take off and landing (STOL) aircraft with circulation control. In addition to the influence on the wing performance, the impact on the longitudinal static stability of the aircraft is also investigated. Furthermore, critical failure cases, namely one engine inoperative (OEI), as well as an asymmetric circulation control failure, are assessed. Therefore, steady CFD calculations based on the Reynolds-averaged Navier-Stokes (RANS) equations were performed. The propeller is modeled with an actuator disk approach. The results show strong potential of increasing lift by synergy effects between circulation control and propeller slipstream. However, the longitudinal stability and controllability are adversely affected. Regarding the case of OEI, the resulting yawing moments are twice as high as the actual yawing moments from the asymmetric thrust and therefore higher than expected.

Item URL in elib:https://elib.dlr.de/98411/
Document Type:Article
Title:Numerical Investigation of Engine Effects on a Transport Aircraft with Circulation Control
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Keller, Dennisdennis.keller (at) dlr.deUNSPECIFIED
Rudnik, Ralfralf.rudnik (at) dlr.deUNSPECIFIED
Date:March 2015
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 421-438
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Circulation Control, CFD, Propeller, Engine Integration, High-Lift, Longitudinal Stability, One Engine Inoperative
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Keller, Dennis
Deposited On:08 Oct 2015 08:45
Last Modified:08 Mar 2018 18:41

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