To mitigate the risk of wake vortex encounters during final approach, so-called plate lines have been developed. Wake vortices generated by landing aircraft induce secondary vortices at the plates’ surfaces that approach the primary vortices and trigger premature wake vortex decay. Each plate line consists of several upright plates that are installed underneath the approach glide path. While the plate line extends perpendicular to the flight direction, its individual plates are oriented in parallel to the runway centerline. In order to obtain the approval of the authorities for the installation of the plate lines at runway 16 of Vienna International Airport, the plate design had to comply with airport requirements like obstacle clearance, stability, and frangibility. During a six-month campaign wake vortex behavior of about 9,500 landings with and without plates was measured simultaneously by three lidars complemented by a comprehensive suite of meteorological instrumentation. The analysis of over 1000 measured wake vortex evolutions indicates that the plate lines reduce the lifetime of long-lived vortices in a safety corridor along the final approach by 21% to 35% depending on the aircraft type. This corresponds to a reduction of vortex circulation by about 50% for the most relevant ICAO separation (Medium behind Heavy).


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Mitigating Wake Turbulence Risk During Final Approach Via Plate Lines


    Beteiligte:
    Holzäpfel, Frank (Autor:in) / Stephan, Anton (Autor:in) / Rotshteyn, Grigory (Autor:in) / Körner, Stephan (Autor:in) / Wildmann, Norman (Autor:in) / Oswald, Lothar (Autor:in) / Gerz, Thomas (Autor:in) / Borek, Günther (Autor:in) / Floh, Alexander (Autor:in) / Kern, Christian (Autor:in)

    Kongress:

    2020 ; Virtual Event


    Erschienen in:

    Erscheinungsdatum :

    2020-06-01



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Mitigating Wake Turbulence Risk During Final Approach via Plate Lines

    Holzäpfel, Frank / Stephan, Anton / Rotshteyn, Grigory et al. | AIAA | 2021


    Mitigating Wake Turbulence Risk During Final Approach via Plate Lines

    Holzäpfel, Frank / Stephan, Anton / Rotshteyn, Grigory et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2021

    Freier Zugriff

    Mitigating Wake Turbulence Risk During Final Approach Via Plate Lines

    Holzäpfel, Frank N. / Stephan, Anton / Rotshteyn, Grigory et al. | AIAA | 2020


    MITIGATING WAKE TURBULENCE RISK DURING FINAL APPROACH VIA PLATE LINES

    Holzäpfel, Frank N. / Stephan, Anton / Rotshteyn, Grigory et al. | TIBKAT | 2020


    Mitigating Aircraft Wake Vortex Risks During Final Approach via Plate Lines

    Holzäpfel, Frank | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2021

    Freier Zugriff