Richter, Kai (2005) Re-Effect on MiniTED Performance in High Speed: Validation and Prediction. AWIATOR Technical Workshop, 2005-11-05, Bremen.
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Kurzfassung
Within the EU-platform AWIATOR a numerical simulation on the aerodynamic effect of MiniTEDs on an Airbus A340-300 has been conducted at wind-tunnel and free-flight conditions for cruise-flight Mach number and lift coefficients. Therefor, a baseline aircraft cruise configuration and a cruise configuration with MiniTEDs applied to the wing trailing-edge have been simulated with the DLR TAU code. The MiniTEDs have been realised by the use of Split Flaps. The results show a good qualitative agreement with wind-tunnel experiments in terms of lift and drag, the MiniTED influence on the drag polar has been reproduced properly. Comparisons of wing-surface pressure-distributions show a good agreement with the experimental data in all wing sections and prove the MiniTED influence on the aerodynamic coefficients. At free-flight conditions the MiniTED influence is seen to increase compared to the wind-tunnel conditions. Here, the lift-enhancing effect increases and the drag differences compared to the baseline configuration are affected unfavourably. The minimum lift coefficient of profitable MiniTED use is shifted to higher lift. Remaining drag reductions at high lift coefficients diminish. The pressure distributions prove the altered MiniTED influence in detail and show that the deflection angle of the MiniTEDs is too high for free-flight conditions. An additional comparison of numerical and flight-test pressure distributions of the baseline configuration shows a good overall agreement when the in-flight wing-twist is being considered.
elib-URL des Eintrags: | https://elib.dlr.de/21992/ | ||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||
Titel: | Re-Effect on MiniTED Performance in High Speed: Validation and Prediction | ||||||||
Autoren: |
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Datum: | 5 November 2005 | ||||||||
Referierte Publikation: | Nein | ||||||||
Open Access: | Nein | ||||||||
Gold Open Access: | Nein | ||||||||
In SCOPUS: | Nein | ||||||||
In ISI Web of Science: | Nein | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | AWIATOR, Airbus A340, MiniTED, cruise flight, wind tunnel test, free flight test, Reynolds number effect, Split Flap, TAU code, lift enhancement, drag reduction | ||||||||
Veranstaltungstitel: | AWIATOR Technical Workshop | ||||||||
Veranstaltungsort: | Bremen | ||||||||
Veranstaltungsart: | Andere | ||||||||
Veranstaltungsdatum: | 5 November 2005 | ||||||||
Veranstalter : | Airbus Deutschland GmbH | ||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||
HGF - Programm: | Luftfahrt | ||||||||
HGF - Programmthema: | Starrflügler (alt) | ||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||
DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||
Standort: | Göttingen | ||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hochgeschwindigkeitskonfigurationen | ||||||||
Hinterlegt von: | Richter, Kai | ||||||||
Hinterlegt am: | 30 Jan 2006 | ||||||||
Letzte Änderung: | 24 Apr 2024 19:03 |
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