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Complementary Numerical and Experimental Data Analysis of the ETW Telfona Pathfinder Wing Transition Tests

Streit, Thomas und Horstmann, Karl Heinz und Schrauf, Géza und Hein, Stefan und Fey, Uwe und Egami, Yasuhiro und Perraud, Jean und Salah El Din, Itham und Cella, Ubaldo und Quest, Jürgen (2011) Complementary Numerical and Experimental Data Analysis of the ETW Telfona Pathfinder Wing Transition Tests. 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 4 - 7 January 2011, Orlando, Florida USA.

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Kurzfassung

Within the European Project Telfona the Pathfinder Model was designed, analyzed numerically, constructed and tested with the aim of obtaining a laminar flow testing capability in the European Transonic Wind Tunnel (ETW). The model was designed for natural laminar flow (NLF) for transonic flow conditions with high Reynolds number. Results of pre-test numerical analysis demonstrated that the Pathfinder wing pressure distribution was adequate for providing calibration test points. The ETW tests provided pressure distribution data while transition positions were determined from images using the Cryogenic Temperature Sensitive Paint Method (cryoTSP). The evaluation of this data with several transition prediction tools was used to establish the transition N-factor values for ETW. In this work, after-test CFD solutions are obtained using numerical Navier-Stokes solutions. In the first part of this work, numerical results are given which verify the requirements of the Pathfinder wing as a calibration model. In the second part, it is shown that for selected flow conditions a good agreement is obtained between stability analysis based on experimental and numerical data. In the third part the correlation of experimental transition locations to critical N-factors is summarized for ETW Test Phases I and II. In the fourth part numerical analysis and experimental data are used complementarily.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Zusätzliche Informationen:AIAA 2011-811
Titel:Complementary Numerical and Experimental Data Analysis of the ETW Telfona Pathfinder Wing Transition Tests
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Streit, Thomasth.streit@dlr.de
Horstmann, Karl HeinzDLR
Schrauf, GézaAirbus
Hein, StefanDLR
Fey, UweDLR
Egami, YasuhiroDLR, Japan Science and Technology Corporation, Kawaguchi, Saitama, Japan
Perraud, JeanOnera
Salah El Din, IthamOnera
Cella, UbaldoPiaggio Aero Industries
Quest, JürgenETW
Datum:Januar 2011
Status:veröffentlicht
Stichwörter:laminar-turbulent transition, wind tunnel experiment (ETW), TELFONA, natural laminar flow, RANS solutions, critical N-factors
Veranstaltungstitel:49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Veranstaltungsort:Orlando, Florida USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:4 - 7 January 2011
Veranstalter :AIAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik
Standort: Braunschweig , Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren
Hinterlegt von: Dr.rer.nat. Thomas Streit
Hinterlegt am:24 Jan 2012 10:07
Letzte Änderung:12 Dez 2013 21:35

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