The starting vortex generated by air blowing from the ground destroys the aircraft wake vortex within a short period of time. Thus, air blowing might shorten flight separation and promote airport operating efficiency. A crosswind is a common phenomenon affecting airplane landing, and it can greatly affect air blowing. In this paper, a large-eddy simulation was used to study the interference exerted by different blowing zones on a wake vortex. The best-performing blowing strategy was estimated by ascertaining the relationship between the blowing zone aspect ratio and the corresponding starting vortex strength. It was found that, without the crosswind, the blowing effect remained almost constant for an aspect ratio of between one and 16. A passive tracer released from the different blowing zones proved that the mechanisms of enhanced vortex decay, with or without crosswind, were identical. However, the results showed that crosswind caused asymmetrical and reduced artificial wake decay enhancement. When the crosswind was imposed, the development of the upwind vortex was sensitive to the aspect ratio, and the blowing zone with an aspect ratio of 16 showed the best performance.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Enhanced Aircraft Wake Decay Under Crosswind Conditions


    Beteiligte:
    Xu, Ziming (Autor:in) / Li, Dong (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 60 , 5 ; 1687-1699


    Erscheinungsdatum :

    2023-03-24


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Optimization of Single Obstacle Pair for Aircraft Wake Dissipation under Crosswind Condition

    Wang, Chung Hung J. / Paramasivam, Sindhu / Zhao, Dan et al. | AIAA | 2017



    Crosswind Thresholds Supporting Wake-Vortex-Free Corridors for Departing Aircraft

    Dengler, Klaus / Holzäpfel, Frank / Gerz, Thomas et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2012

    Freier Zugriff

    Aircraft Crosswind Performance

    J. F. O'Gara | NTIS | 1964