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Gust alleviation on a forward swept transport aircraft at transonic speeds

Klug, Lorentz and Naik, Haley and Ullah, Junaid and Lutz, Thorsten and Wild, Jochen and Heinrich, Ralf and Radespiel, Rolf (2021) Gust alleviation on a forward swept transport aircraft at transonic speeds. In: AIAA Scitech 2021 Forum. AIAA Scitech 2021 Forum, 11.-21.Jan 2021, VIRTUAL EVENT. doi: 10.2514/6.2021-1649.

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/6.2021-1649


This paper investigates active gust alleviation on a forward swept transport aircraft at transonic speeds. A gust study reveals a critical gust wave length of 50m leading to highest aerodynamic loads under cruise conditions. Gust induced separation is observed for particular cases. Deflection of a wing tip flap and aileron at the outer part of the wing have a remarkable short response time and offer a very promising flow actuation to reduce gust induced lift. The droop nose can be used to control the pitching moment. The flap deflection angle has to be chosen carefully to avoid flow separation. Adding the aileron, increases the effectiveness of the gust alleviation system significantly.

Item URL in elib:https://elib.dlr.de/140188/
Document Type:Conference or Workshop Item (Speech)
Title:Gust alleviation on a forward swept transport aircraft at transonic speeds
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Klug, LorentzTU Braunschweig, ISMUNSPECIFIED
Naik, HaleyTU Braunschweig, ISMUNSPECIFIED
Ullah, JunaidUniversität StuttgartUNSPECIFIED
Lutz, ThorstenInstitute of Aerodynamics and Gas Dynamics, Universität StuttgartUNSPECIFIED
Wild, JochenJochen.Wild (at) dlr.dehttps://orcid.org/0000-0002-2303-3214
Heinrich, RalfRalf.Heinrich (at) dlr.deUNSPECIFIED
Radespiel, RolfTU Braunschweig, ISMUNSPECIFIED
Date:January 2021
Journal or Publication Title:AIAA Scitech 2021 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2021-1649
Keywords:Aerodynamics, Load alleviation, Gust Loads
Event Title:AIAA Scitech 2021 Forum
Event Location:VIRTUAL EVENT
Event Type:international Conference
Event Dates:11.-21.Jan 2021
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)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute for Aerodynamics and Flow Technology > CASE, BS
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:11 Jan 2021 07:22
Last Modified:11 Jan 2021 07:22

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