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Aerodynamic Analysis of a STOL Propeller Aircraft with Active High-Lift and Control Surface Systems

Keller, Dennis and Rudnik, Ralf (2020) Aerodynamic Analysis of a STOL Propeller Aircraft with Active High-Lift and Control Surface Systems. In: Fundamentals of High Lift for Future Civil Aircraft Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 145. Springer International Publishing. pp. 427-445. doi: 10.1007/978-3-030-52429-6. ISBN 978-3-030-52428-9. ISSN 1612-2909.

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Official URL: https://www.springer.com/gp/book/9783030524289


The aerodynamic properties of a state-of-the-art short take-off and landing aircraft design with circulation control and slipstream deflection in landing configuration have been investigated via RANS simulations. The present paper summarizes the findings concerning one engine inoperative conditions (OEI), active control surface design, and ground effect. It is shown that the unfavorable aircraft’s aerodynamic characteristics under OEI conditions, including a degraded maximum lift coefficient and extraordinarily high yawing moments, can be improved via passive measures, such as nacelle strakes and tail fences. The resulting requirements for lateral control forces can be fulfilled by the use of circulation controlled rudder and ailerons. Simulations of the 3D configuration in ground proximity yield a beneficial effect on the lift coefficient despite contrary indications from 2D computations. Furthermore, the simulations show a significant pitch down tendency due to ground proximity.

Item URL in elib:https://elib.dlr.de/137631/
Document Type:Contribution to a Collection
Title:Aerodynamic Analysis of a STOL Propeller Aircraft with Active High-Lift and Control Surface Systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Keller, DennisDennis.Keller (at) dlr.dehttps://orcid.org/0000-0002-1471-9433
Rudnik, RalfRalf.Rudnik (at) dlr.deUNSPECIFIED
Date:October 2020
Journal or Publication Title:Fundamentals of High Lift for Future Civil Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-030-52429-6
Page Range:pp. 427-445
EditorsEmailEditor's ORCID iD
Radespiel, RolfInstitute of Fluid Mechanics, Braunschweig Technical UniversityUNSPECIFIED
Semaan, RichardBraunschweig Technical UniversityUNSPECIFIED
Publisher:Springer International Publishing
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:aerodynamics, short take-off and landing, active high-lift, circulation control, CFD, engine inoperative conditions, ground effect, rudder and ailerons design
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 (old), L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Keller, Dennis
Deposited On:18 Nov 2020 07:59
Last Modified:23 Nov 2020 08:20

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