In the framework of the Design & Development (D&D) Phase of the NH90 helicopter programme, a wind tunnel test project is being carried out using various sub-scale models to determine the aerodynamic behaviour of the vehicle. The NH90 helicopter is being developed in a cooperative programme by four European nations: France, Germany, Italy and The Netherlands. NLR (Nationaal Lucht- en Ruimtevaart Laboratorium), in close cooperation with DLR (Deutsche Versuchsanstalt für Luft- und Raumfahrt) and DNW (Duits Nederlandse Windtunnel = German Dutch Wind tunnel) has successfully completed testing of a powered NH90 helicopter model (scale 1:4) in the Large Low speed Facility of the German Dutch Windtunnel DNW. A unique feature of the wind tunnel model was the integration of a scaled down powered rotor system and engine flow simulation module in one test set-up. The model allowed simultaneous gathering of both rotor and installed engine performance data. Prior to wind tunnel testing, the model was subjected to a series of elaborate functional tests. The wind tunnel tests were primarily aimed at evaluating the engine air intake characteristics, exhaust gas recirculation and IR (Infra Red) signature. Testing was performed in a wide range of forward, sideward and rearward flight conditions. A large number of test parameters were acquired, ranging from rotor quantities like hub and blade loads, and rotor blade angles (pitch, flap and lead-lag) to air intake pressure distribution, exhaust gas and fuselage skin temperature. A high level of repeatability of the most import test parameters was achieved, demonstrating the quality of test results gained.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    NH90 helicopter model rotor and engine installation wind tunnel test in DNW


    Weitere Titelangaben:

    Untersuchungen des Modellrotors des Hubschraubers NH90 und der Triebwerksinstallation im Deutsch-Niederländischen Windkanal


    Beteiligte:
    Hermans, C. (Autor:in) / Hakkaart, J. (Autor:in) / Kooi, J. (Autor:in) / Langer, H.J. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    8 Seiten, 15 Bilder


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    NH90 Helicopter Model Rotor and Engine Installation Wind Tunnel Test in DNW

    Hermans, C. / Hakkart, J. / Kooi, J. et al. | British Library Conference Proceedings | 1997


    NH90 Helicopter Development Wind Tunnel Programme

    C. Hermans / J. Hakkaart / G. Panosetti et al. | NTIS | 1997


    The NH90 Helicopter Development Wind Tunnel Programme

    Hermans, C. / Hakkaart, J. / Panosetti, G. et al. | British Library Conference Proceedings | 1997