This grant supported research into quiet-flow supersonic wind-tunnels, between February 1994 and February 1995. Quiet-flow nozzles operate with laminar nozzle-wall boundary layers, in order to provide low-disturbance flow for studies of laminar-turbulent transition under conditions comparable to flight. Major accomplishments include: (1) development of the Purdue Quiet-Flow Ludwieg Tube, (2) computational evaluation of the square nozzle concept for quiet-flow nozzles, and (3) measurement of the presence of early transition on the flat sidewalls of the NASA LaRC Mach 3.5 supersonic low-disturbance tunnel. Since items (1) and (2) are described in the final report for companion grant NAG1-1133, only item (3) is described here. A thesis addressing the development of square nozzles for high-speed, low-disturbance wind tunnels is included as an appendix.


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    Titel :

    Supersonic Quiet-Tunnel Development for Laminar-Turbulent Transition Research


    Beteiligte:

    Erscheinungsdatum :

    1995


    Format / Umfang :

    172 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






    Laminar-Turbulent Transition Research in the Boeing/AFOSR Mach-6 Quiet Tunnel

    Schneider, S. P. / Skoch, C. / Rufer, S. et al. | British Library Conference Proceedings | 2005


    Laminar-Turbulent Transition Research in the Boeing/AFOSR Mach-6 Quiet Tunnel

    Schneider, Steven / Skoch, Craig / Rufer, Shann et al. | AIAA | 2005


    Quiet Supersonic Wind Tunnel Development

    King, Lyndell S. / Kutler, Paul | NTRS | 1994