Local interfacial structures in horizontal bubbly flow with 90-degree bend

Seungjin Kim, Jung Han Park, Gunol Kojasoy, Joseph M. Kelly

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Scopus citations

    Abstract

    Present study investigates the geometric effects of flow obstruction on the distribution of local two-phase flow parameters and their transport characteristics in horizontal two-phase flow. The round glass tubes of 50.3mm in inner diameter are employed as test sections, along which a 90-degee elbow is located at L/D=206.6 from the two-phase mixture inlet. In total, 15 different flow conditions are examined within the air-water bubbly flow regime. The detailed local two-phase flow parameters are acquired by the double-sensor conductivity probe at four different axial locations. The effect of elbow is found to be evident in both the distribution of local parameters and their development. The elbow clearly promotes bubble interactions resulting in significant changes in interfacial area concentration. It is also found that the elbow-effect propagates to be more significant further downstream (L/D=250) than immediate downstream (L/D=225) of the elbow. Furthermore, it is shown that the elbow induces significant oscillations in the flow in both vertical and horizontal directions of the tube cross-section. Characteristic geometric effects due to the existence of elbow are also shown clearly on the axial development of one-dimensional interfacial area concentration and void fraction.

    Original languageEnglish (US)
    Title of host publicationFourteenth International Conference on Nuclear Engineering 2006, ICONE 14
    DOIs
    StatePublished - Dec 1 2006
    EventFourteenth International Conference on Nuclear Engineering 2006, ICONE 14 - Miami, FL, United States
    Duration: Jul 17 2006Jul 20 2006

    Publication series

    NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
    Volume2006

    Other

    OtherFourteenth International Conference on Nuclear Engineering 2006, ICONE 14
    CountryUnited States
    CityMiami, FL
    Period7/17/067/20/06

    All Science Journal Classification (ASJC) codes

    • Nuclear Energy and Engineering

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  • Cite this

    Kim, S., Park, J. H., Kojasoy, G., & Kelly, J. M. (2006). Local interfacial structures in horizontal bubbly flow with 90-degree bend. In Fourteenth International Conference on Nuclear Engineering 2006, ICONE 14 (International Conference on Nuclear Engineering, Proceedings, ICONE; Vol. 2006). https://doi.org/10.1115/ICONE14-89221