As part of a multiphased program for subsonic transport high-lift flight research, flight tests were conducted on the Transport Systems Research Vehicle (B737-100 aircraft) at the NASA Langley Research Center, to obtain detailed flow characteristics of the high-lift flap system for correlation with computational and wind-tunnel investigations. Pressure distributions, skin friction, and flow-visualization measurements were made on a triple-slotted flap system for a range of flap deflections, chord Reynolds numbers (10 to 21 million), and Mach numbers (0.16 to 0.36). Experimental test results are given for representative flap settings indicating flow separation on the fore-flap element for the largest flap deflection. Comparisons of the in-flight flow measurements were made with predictions from available viscous multielement computational methods modified with simple-sweep theory. Computational results overpredicted the experimentally measured pressures, particularly in the case involving separation of the fore lap, indicating the need for better modeling of confluent boundary layers and three-dimensional sweep effects.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    In-flight surface-flow measurements on a subsonic transport high-lift flap system


    Contributors:


    Publication date :

    1992-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    In-Flight Surface-Flow Measurements of a Subsonic Transport High-Lift Flap System

    Yip, L. P. / Vijgen, P. M. H. W. / Hardin, J. D. | British Library Online Contents | 1992


    ICAS-92-3.7.3 In-Flight Surface-Flow Measurements of a Subsonic Transport High-Lift Flap System

    Yip, L. P. / Vijgen, P. M. H. W. / Hardin, J. D. et al. | British Library Conference Proceedings | 1992


    In-Flight pressure measurements on a subsonic transport high-lift wing section

    Yip, Long P. / Vijgen, Paul M. H. V. / Hardin, Jay D. et al. | AIAA | 1995



    Subsonic high-lift flight research on the NASA Transport System Research Vehicle (TSRV)

    YIP, LONG / VIJGEN, PAUL / HARDIN, JAY et al. | AIAA | 1992