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Design and Testing a Full Scale Laminar Wing Leading Edge High-Lift System

Wild, Jochen und Palazzo, Salvatore und Brinza, Ionuts und van der Biest, Koen und Vervliet, Antoon und Schmitz, Holger (2021) Design and Testing a Full Scale Laminar Wing Leading Edge High-Lift System. 8th European Congress on Computational Methods in Applied Science and Engineering, 11.-15.Jan 2021, VIRTUAL EVENT.

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Offizielle URL: https://www.wccm-eccomas2020.org/

Kurzfassung

The feasibility of laminar flow control technology for future wing is bound to the development of a leading edge high-lift system that complies with the requirements on smooth surfaces to enable maintaining the laminar boundary layer flow. Classical leading edge high-lift devices like slats are not suitable as they introduce disturbances in the very sensitive upper surface leading edge area. Krueger flaps, which are deflected from the lower side of the wing, are a good alternative as they additionally offer the capability to shield the wing against contamination by insects, water or dirt. Already in 1985, Boeing proposed a concept of a vented Krueger forming a gap flow between main wing and Krueger flap together with a folding bull nose. Although in principle the aerodynamic performance of a Krueger flap is less than for a slat, Rudolph proposed to further develop this kind of Krueger device to provide aerodynamic characteristics comparable to a slat device. Within the EC project DeSiReH a vented foldable bull nose Krueger was designed that showed comparable high-lift aerodynamics. Within the European AFLoNext project, a full scale HLFC leading edge demonstrator was designed and built that incorporated the vented foldable bull nose Krueger. In summer 2018 this demonstrator was wind tunnel tested in the CIRA Icing Wind Tunnel facility. Within this test the aerodynamic design was verified. Additionally, it was tested whether the Krueger device would need a distinct de-icing system. The contribution summarizes the design of the Kruger device together with the findings from the full scale wind tunnel test of the Krueger flap configuration.

elib-URL des Eintrags:https://elib.dlr.de/140191/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Design and Testing a Full Scale Laminar Wing Leading Edge High-Lift System
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Wild, JochenJochen.Wild (at) dlr.dehttps://orcid.org/0000-0002-2303-3214NICHT SPEZIFIZIERT
Palazzo, SalvatoreCIRA, s.palazzo (at) cira.itNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Brinza, IonutsINCAS, ibrinza (at) incas.roNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
van der Biest, KoenASCO Industries N.V.NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Vervliet, AntoonASCO Industries N.V.NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schmitz, HolgerINVENT GmbHNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Januar 2021
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Hybrid Laminar Flow Control, High-Lift System, Krueger Flap, Wind Tunnel Test, Icing Test
Veranstaltungstitel:8th European Congress on Computational Methods in Applied Science and Engineering
Veranstaltungsort:VIRTUAL EVENT
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:11.-15.Jan 2021
Veranstalter :ECCOMAS
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Hinterlegt von: Wild, Dr.-Ing. Jochen
Hinterlegt am:11 Jan 2021 07:28
Letzte Änderung:20 Jun 2021 15:54

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