Flow visualization in mechanical heart valves: occluder rebound and cavitation potential

V. Kini, C. Bachmann, A. Fontaine, S. Deutsch, J. M. Tarbell

    Research output: Contribution to journalArticlepeer-review

    40 Scopus citations

    Abstract

    Particle image velocimetry (PIV) based investigation was carried out to account for the effect of valve rebound on the local fluid flow patterns and thus, by inference, on the local pressures and the cavitational potential. Actual flow rate measurements were used to confirm the average velocity at nozzle exit. The results indicate that the sudden stopping and subsequent rebound motion of the occluder on the higher-speed major orifice side plays a role in the initiation of the vaporous cavitation field there.

    Original languageEnglish (US)
    Pages (from-to)431-441
    Number of pages11
    JournalAnnals of Biomedical Engineering
    Volume28
    Issue number4
    DOIs
    StatePublished - 2000

    All Science Journal Classification (ASJC) codes

    • Biomedical Engineering

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