Interfacial structure in an air-water planar bubble jet

X. Sun, S. Vasavada, S. W. Choi, Seungjin Kim, M. Ishii, S. G. Beus

    Research output: Contribution to journalArticlepeer-review

    10 Scopus citations

    Abstract

    The objective of the current study is to better understand the interfacial structure and its development in an air-water planar bubble jet, as well as to provide a unique benchmark data set for a 3D thermal-hydraulic analysis code. Both flow visualization and local measurements were performed in three characteristic flow conditions at four elevations along a test section with a cross section of 200 mm in width and 10 mm in gap. A high-speed digital video camera was applied in the flow visualization study to capture the flow structures and bubble interaction phenomena, while a miniaturized four-sensor conductivity probe was used to acquire the time-averaged local void fraction, interfacial velocity, and bubble number frequency. Also, the interfacial area concentration and the averaged bubble Sauter mean diameter were obtained from the local measurements. The lateral bubble transport and bubble interaction mechanisms were clearly demonstrated in the acquired data.

    Original languageEnglish (US)
    Pages (from-to)426-439
    Number of pages14
    JournalExperiments in Fluids
    Volume38
    Issue number4
    DOIs
    StatePublished - Apr 1 2005

    All Science Journal Classification (ASJC) codes

    • Computational Mechanics
    • Mechanics of Materials
    • Physics and Astronomy(all)
    • Fluid Flow and Transfer Processes

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