The nature and cause of clear-air turbulence is being investigated, in cooperation with the National Transportation Safety Board, using the flight records available from airline encounters with severe turbulence. This paper presents two case studies of severe turbulence which indicate that the airplanes involved encountered vortex arrays which were generated by destabilized wind-shear layers near the tropopause. In order to identify and analyze vortex patterns (i.e., vortex strength, size, and spacings), potential-flow models of vortex arrays were developed that describe reasonably well the wind patterns derived from the airliner flight records. The results of this analysis indicate that in the two cases studied, the vortex cores had diameters in the range of 900 to 1,200 ft with tangential velocities in the range of 70 to 85 ft/sec. This study presents the first identification and analysis of vortex arrays from airline flight data. The results are compared with theoretical predictions and previous observations.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Identification of vortex-induced clear-air turbulence using airline flight records


    Beteiligte:
    Parks, E. K. (Autor:in) / Wingrove, R. C. (Autor:in) / Bach, R. E. (Autor:in) / Mehta, R. S. (Autor:in)

    Erscheinungsdatum :

    1984-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Identification of vortex-induced clear-air turbulence using airline flight records

    PARKS, E. / WINGROVE, R. / BACH, R. et al. | AIAA | 1984


    Identification of vortex-induced clear air turbulence using airline flight records

    PARKS, E. K. / WINGROVE, R. C. / BACH,R. E. et al. | AIAA | 1985


    Identification of vortex-induced clear air turbulence using airline flight records

    Parks, E. K. / Wingrove, R. C. / Bach, R. E. et al. | NTRS | 1985



    Severe turbulence and maneuvering from airline flight records

    WINGROVE, R. / BASCH, JR., R. | AIAA | 1992