Flight experiments are being conducted with the objective to investigate the interactions between acoustic disturbances and laminar flow in the flight environment. In the experiments, the laminar boundary layer on the nacelles will be exposed to discrete and broadband external noises, and the effect of varying noise levels and frequencies on the stability of the laminar flow will be studied. The present paper provides an overview of the complete project and a status report on the results which have been obtained. The flight experiment is conducted with the aid of a modified research aircraft. The phase I flight tests are concerned with a quick and simple determination of natural laminar flow (NLF) behavior on an engine nacelle. Attention is given to instrumentation, the acoustic noise source, flow visualization, and the test results.


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    Titel :

    Natural laminar flow flight experiments on a turbine engine nacelle fairing


    Beteiligte:
    Obara, C. J. (Autor:in) / Hastings, E. C. (Autor:in) / Schoenster, J. A. (Autor:in) / Parrott, T. L. (Autor:in) / Holmes, B. J. (Autor:in)

    Erscheinungsdatum :

    01.04.1986


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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