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  • Kelvin-Helmholtz instability governs the cavitation cloud shedding in Venturi microchannel
    Podbevšek, Darjan ...
    The paper shows visualization of cavitation inside a micro-Venturi channel. While the initial aim of the study was to establish supercavitating conditions inside a micro-Venturi, yet we found that ... this regime is suppressed due to the formation of a Kelvin-Helmholtz instability, which triggers a semi periodical attached cavity collapse. In depth observations using high speed imaging with visible light and X-rays revealed that this is, besides the re-entrant jet and the shock wave, a third mechanism leading to the shedding of cloud cavitation. In addition, a simple model was proposed which explains the formation of the Kelvin-Helmholtz instability in cavitating micro-Venturi and also offers explanation on why this is the dominant mechanism of cavitation cloud shedding at small scales.
    Vir: International journal of multiphase flow. - ISSN 0301-9322 (Vol. 142, Sep. 2021, str. 1-7)
    Vrsta gradiva - članek, sestavni del
    Leto - 2021
    Jezik - angleški
    COBISS.SI-ID - 66420227

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0301932221001488?via%3Dihub
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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