This paper obtains a review of modern experimental techniques to improve free air simulations in transonic wind tunnels by use of adaptive wall technology. The review considers the significant advantages of adaptive wall testing techniques with respect to wall interferences. Reynolds number, tunnel drive power, and flow quality. The application of these testing techniques relies on making the test section boundaries adjustable and using a rapid wall adjustment procedure. An historical overview shows how the disjointed development of these testing techniques, since 1938, is closely linked to a available computer support. An overview of Adaptive Wall Test Section (AWTS) designs shows a preference for use of relatively simple designs with solid adaptive walls in 2- and 3-D testing. Operational aspects of AWTSs are discussed with regard to production type operation where adaptive wall adjustments need to be quick. Both 2- and 3-D data are presented to illustrate the quality of AWTS data over the transonic speed range. Adaptive wall technology is available for general use in 2-D testing, even in cryogenic wind tunnels. In 3-D testing, more refinement of the adaptive wall testing techniques is required before more widespread use can be envisaged.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Adaptive wall technology for minimiztion of wall interferences in transonic wind tunnels


    Additional title:

    Adaptive Wandtechnik zur Minimierung der Wandstöreinflüsse im Transsonikwindkanal


    Contributors:
    Wolf, S.W. (author)


    Publication date :

    1989


    Size :

    27 Seiten, 22 Bilder, 1 Tabelle, 24 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Transonic Wall Interference Corrections for Small Wind Tunnels

    Crites, R. C. / Rueger, M. / Royal Aeronautical Society | British Library Conference Proceedings | 1992