Experiments on Transition Detection Using chemical sublimation Technique and Hot-Film Gauges

Krishnan, V and Shashikanth, BN and Mukund, R (1995) Experiments on Transition Detection Using chemical sublimation Technique and Hot-Film Gauges. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    The chemical sublimation technique using naphthalene was applied to detect boundary layer transition on a flat plate at low speeds. Comparison of location characterising the end of transition as detected by this technique with those mane employing velocity profile and transitional13; i ntermittency measurements showed satisfactory agreement. The above technique was also successfully applied in an exploratory test on the wing of the NAL light aircraft model at low speeds. To gain experience in the use of hot-films, a hot-film gauge was also calibrated in a zero pressure gradient turbulent boundary layer. These13; results are described in the Appendix.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Transition Detection;Chemical Sublimation;Hot-Film Gauges
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    AERONAUTICS > Aerodynamics
    Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division, Experimental Aerodynamics Division
    Depositing User: Mrs Neetu Chandra
    Date Deposited: 10 May 2006
    Last Modified: 24 May 2010 09:41
    URI: http://nal-ir.nal.res.in/id/eprint/1343

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