A fiber optic skin friction gage has been developed for supersonic flow applications. Experimental results for a Mach 3 2-D flow are presented. Accuracy within 5% was attained. Also presented is a fiber optic combined pressure/skin friction gage for similar environments. The skin friction balance design is a non-nulling cantilevered beam with a sensing head attached to the end and is similar to other designs previously constructed by Schetz and his graduate students. The sensing head is aligned with the plane of the wall so that it is exposed only to the shear force. The cantilever beam deflects under the load due to the shearing force, and the resulting strain can be measured. In previous designs, either foil or semiconductor strain gages have been used. Fiber optic gages offer to increase resolution while substantially reducing temperature sensitivity.


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    Titel :

    Fiber optic pressure/skin friction gage for supersonic flow applications


    Beteiligte:
    Pulliam, W. (Autor:in) / Jones, M. (Autor:in) / Schetz, J.A. (Autor:in) / Murphy, K. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    7 Seiten, 18 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Fiber Optic Pressure/Skin Friction Gage for Supersonic Flow Applications

    Pulliam, W. / Jones, M. / Schetz, J. A. et al. | British Library Conference Proceedings | 1997


    SKIN FRICTION MEASUREMENTS AT SUPERSONIC FLOW VELOCITIES

    Falempin, F. / Goldfeld, M. / Nestoulia, R. et al. | British Library Conference Proceedings | 2003



    Body Shape Effects on Skin Friction in Supersonic Flow

    BALL, W. H. / NORTH AMERICAN AVIATION CO. / INC. et al. | AIAA | 1965