Decay or collapse: Aircraft wake vortices in grid turbulence

M. Ren, A. Elsenaar, G.J.F. van Heijst, Arkadiusz K. Kuczaj, Bernardus J. Geurts

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    53 Citations (Scopus)
    50 Downloads (Pure)


    Trailing vortices are naturally shed by airplanes and they typically evolve into a counter-rotating vortex pair. Downstream of the aircraft, these vortices can persist for a very long time and extend for several kilometers. This poses a potential hazard to following aircraft, particularly during take-off and landing. Therefore, it is of interest to understand what effects control the decay rate in strength of the trailing vortices. The decay of the aircraft wake vortices is strongly dependent on weather conditions. To simulate an environment of atmospheric turbulence, homogeneous isotropic turbulence is introduced next to localized vortical structure. In this contribution, the effect of external turbulence on the vortex decay will be investigated numerically, using a DNS method, and experimentally. Wind tunnel experiments are carried out using a smoke visualization technique.
    Original languageUndefined
    Title of host publicationProceedings of the Euromech Fluid Mechanics Conference - 6 (EFMC6)
    Place of PublicationStockholm
    PublisherAmerican Physical Society
    Number of pages1
    ISBN (Print)not assigned
    Publication statusPublished - 2006
    Event6th European Fluid Mechanics Conference, EFMC 2006 - Royal Institute of Technology, KTH, Stockholm, Sweden
    Duration: 26 Jun 200630 Jun 2006
    Conference number: 6

    Publication series

    NameAbstracts book
    PublisherRoyal Institute of Technology


    Conference6th European Fluid Mechanics Conference, EFMC 2006
    Abbreviated titleEFMC 2006


    • EWI-9023
    • METIS-238746
    • IR-66864

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