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Numerical Investigation on the Aerodynamic Effect of Mini-TEDs on the AWIATOR Aircraft at Cruise Conditions

Richter, Kai and Rosemann, Henning (2006) Numerical Investigation on the Aerodynamic Effect of Mini-TEDs on the AWIATOR Aircraft at Cruise Conditions. 25th Congress on International Council of the Aeronautical Sciences (ICAS 2006), 2006-09-03 - 2006-09-08, Hamburg, Germany.

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Abstract

Within the EU technology platform AWIATOR a numerical investigation on the aerodynamic effect of mini-TEDs on an Airbus A340-300 was conducted at wind-tunnel and free-flight conditions for cruise-flight Mach number and lift coefficients. An aircraft in cruise configuration with and without mini-TEDs applied to the wing trailing-edge was simulated with the DLR-TAU code. The mini-TEDs were realized by the use of split-flaps. The numerical results show that lift is increased when using mini-TEDs and the wing-load distribution is changed with a re-distribution of lift towards the wing root as expected. The results achieve a good agreement with wind-tunnel experiments in terms of lift and drag as well as wing-surface pressure-distributions. At free-flight conditions the mini-TED influence increases compared to wind-tunnel conditions. The lift-enhancing effect of mini-TEDs increases but the drag differences are affected unfavourably for the given aircraft configuration. The minimum lift coefficient of profitable mini-TED use is shifted to higher lift and the remaining drag reductions at high lift coefficients diminish. Additional comparisons of numerical and flight-test pressure distributions for the baseline configuration show a good overall agreement.

Item URL in elib:https://elib.dlr.de/22946/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Numerical Investigation on the Aerodynamic Effect of Mini-TEDs on the AWIATOR Aircraft at Cruise Conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Richter, KaiUNSPECIFIEDUNSPECIFIED
Rosemann, HenningUNSPECIFIEDUNSPECIFIED
Date:7 April 2006
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:AWIATOR, mini-TED effect, split-flap, Reynolds-number influence, DLR-TAU code
Event Title:25th Congress on International Council of the Aeronautical Sciences (ICAS 2006)
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:2006-09-03 - 2006-09-08
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Richter, Kai
Deposited On:30 Oct 2006
Last Modified:14 Jan 2010 21:07

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