The concepts of holography and holographic interferometry, as applied to the visualization and measurement of the three dimensional flow field near a rotor tip, are previewed, and initial experimental results of investigations of local shock structures and tip vortices behind the blade are presented. An additional method to visualize the flow in a three dimensional manner is demonstrated, and finally, a method to quantitatively measure the three dimensional flow, which will provide the necessary information to help improve helicopter performance and reduce noise, is introduced.


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    Titel :

    Holographic interferometry technique for rotary wing aerodynamics and noise


    Beteiligte:
    Kittleson, J. K. (Autor:in) / Yu, Y. H. (Autor:in)

    Kongress:

    Army Sci. Conf. ; 1982 ; West Point, NY, United States


    Erscheinungsdatum :

    01.01.1981


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch





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