Internal weapons bays are becoming increasingly common on aircraft for reasons of stealth and aerodynamic performance, and will be even more prevalent on coming generations of unmanned combat aerial vehicles (UCAVs). Wind tunnel testing of store releases to assess forces and moments for safety and clearance must be conducted with a store mounted to an angled strut rather than a conventional rear sting, to allow the full range of motion as the store "drops" from inside the aircraft. Interference from this strut can disrupt the flowfields and thus the reliability of moments obtained, and therefore an investigation was conducted to quantify the potential extent of discrepancies; original small-scale transonic wind tunnel testing was undertaken in a limited program which was supported by extensive numerical work. It was concluded that the precise geometry of the strut/store interface was of critical importance, with a typical design producing non-linear interference at high angles of attack. A simple improved design is proposed - making use of a blended interface and a more appropriate supercritical aerofoil strut cross section - yielding marked improvements in force and moment predictions.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Reducing transonic wind tunnel sting interference effects for concealed store release testing




    Erscheinungsdatum :

    2016



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    275/7040



    Reducing transonic wind tunnel sting interference effects for concealed store release testing

    Doig, Graham / Bogdan, Goran / Kabir, Kaveh R et al. | SAGE Publications | 2016


    Aspects of sting interference for transonic store release wind tunnel testing

    Doig, Graham / Bogdan, Goran / Snyder, Murray et al. | AIAA | 2013


    Aspects of Sting Interference for Transonic Store Release Wind Tunnel Testing

    Doig, G. / Bogdan, G. / Snyder, M. et al. | British Library Conference Proceedings | 2013


    Transonic sting interference

    ERICSSON, L. / REDING, J. | AIAA | 1979


    Transonic Sting Interference

    L.E. Ericsson / J.P. Reding | AIAA | 1980