Disturbance initiated by convergent riblet in flat plate boundary layer

T. Nadesan, H. Mitsudharmadi, T. S. Lee, S. H. Winoto

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

    Abstract

    The characteristics of the disturbance initiated by convergent riblet, in the form of streamwise counter-rotating vortices, is examined experimentally using hot-wire anemometry. The parameter considered is riblet height to Blasius boundary layer thickness of 0.5. The turbulent intensity contours and the frequency spectrum reveal that the streamwise counter-rotating vortices are already at the verge of breakdown. The possible path towards the breakdown of the structures has also been discussed.

    Original languageEnglish (US)
    Title of host publicationProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014
    PublisherAustralasian Fluid Mechanics Society
    ISBN (Electronic)9780646596952
    StatePublished - 2014
    Event19th Australasian Fluid Mechanics Conference, AFMC 2014 - Melbourne, Australia
    Duration: Dec 8 2014Dec 11 2014

    Publication series

    NameProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014

    Other

    Other19th Australasian Fluid Mechanics Conference, AFMC 2014
    Country/TerritoryAustralia
    CityMelbourne
    Period12/8/1412/11/14

    ASJC Scopus subject areas

    • Fluid Flow and Transfer Processes

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