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Comparison of the computed flow field around a bubble growing at an orifice using PIV techniques

Waddell, Peter and Stickland, M.T. and Mason, S. and McKay, S. (1999) Comparison of the computed flow field around a bubble growing at an orifice using PIV techniques. In: Proceedings of the Second International Symposium on Two-Phase Flow Modelling and Experimentation. Edizioni ETS, p. 1365. ISBN 88-467-0177-1

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    Abstract

    For bubbles growing rapidly at orifices, the inertia of the liquid displacement and the resultant liquid flow field contribute to the production of an inertia force which tends to retard bubble movement. It is therefore the purpose of this paper to report on a study to examine the validity of liquid velocity fields predicted by potential flow methods and measurements made using Particle Image Velocimetry (PIV) techniques. Air bubbles are generated in water at atmospheric conditions from a 1 mm diameter orifice. The process is transient and occurs over a period of approximately 80 msecs. Therefore a combination of high speed video techniques and PIV image processing has been used to determine the liquid velocity vector fields during the bubble growth, detachment and translation periods. This paper will present a summary of the experimental techniques and the theoretical model and discuss the results of the study.

    Item type: Book Section
    ID code: 7445
    Keywords: bubbles, two phase modelling, experimentation, instrumentation, modelling, Mechanical engineering and machinery
    Subjects: Technology > Mechanical engineering and machinery
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Professional Services > West of Scotland KTP Centre
    Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 28 Jan 2009 10:39
    Last modified: 11 Jun 2014 22:01
    URI: http://strathprints.strath.ac.uk/id/eprint/7445

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