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Flight mechanics model for spanwise lift and rolling moment distributions of a segmented active high-lift wing

Diekmann, Jobst Henning and Keller, Dennis and Faez, Edris and Rudnik, Ralf and Gollnick, Volker (2017) Flight mechanics model for spanwise lift and rolling moment distributions of a segmented active high-lift wing. CEAS Aeronautical Journal, 8 (4), pp. 625-635. Springer. doi: 10.1007/s13272-017-0261-4. ISSN 1869-5590.

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Official URL: https://link.springer.com/article/10.1007/s13272-017-0261-4


In this study, the aerodynamics of wings using an active high-lift system are investigated. The target is the flight mechanical description of the spanwise forces and resulting moments and the influence of the active high-lift system to their distribution. The high-lift system is a blown flap system divided into six segments per wing. Each segment is assumed to be individually controlled, so the system shall be used for aircraft control and system failure management. This work presents a flight mechanical sub-model for the simulation of flight dynamics, which has been derived from high-fidelity CFD results. An assessment of single-segment blowing system failures will be presented including recommendations for compensation of either lift or rolling moment loss. For this investigation, the compensation is required to act at the same wing side on which the failure appears. Thus, the potential for an increase of system reliability shall be proven. The results show that less performance investment in terms of pressurized air is necessary to compensate the rolling moment of a failing segment instead of its lift. However, large blowing performance increases for the remaining wing segments that occur for some of the failure cases.

Item URL in elib:https://elib.dlr.de/118602/
Document Type:Article
Title:Flight mechanics model for spanwise lift and rolling moment distributions of a segmented active high-lift wing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Diekmann, Jobst Henningjobst.diekmann (at) dlr.dehttps://orcid.org/0000-0002-5813-0364
Keller, DennisDennis.Keller (at) dlr.deUNSPECIFIED
Faez, EdrisTU Hamburg HarburgUNSPECIFIED
Rudnik, Ralfralf.rudnik (at) dlr.deUNSPECIFIED
Gollnick, Volkervolker.gollnick (at) dlr.deUNSPECIFIED
Date:21 September 2017
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/s13272-017-0261-4
Page Range:pp. 625-635
Keywords:Active high-lift, Coandă flaps, Flight dynamics model, Short take-off and landing, Spanwise lift distribution, Aircraft control
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 - Simulation and Validation (old), L - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Flight Dynamics and Simulation
Institute for Aerodynamics and Flow Technology > Transport Aircraft
Air Transport Operations
Deposited By: Diekmann, Dr. Jobst Henning
Deposited On:30 Jan 2018 13:39
Last Modified:31 Jul 2019 20:16

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