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

Research output: Chapter in Book/Report/Conference proceedingChapter

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.
LanguageEnglish
Title of host publicationProceedings of the Second International Symposium on Two-Phase Flow Modelling and Experimentation
Pages1365
Volume3
Publication statusPublished - May 1999

Fingerprint

Orifices
Velocity measurement
Flow fields
Liquids
Potential flow
Bubbles (in fluids)
Image processing
Air
Water

Keywords

  • bubbles
  • two phase modelling
  • experimentation
  • instrumentation
  • modelling

Cite this

Stickland, M. T., & Dempster, W. M. (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 (Vol. 3, pp. 1365)
Stickland, M.T. ; Dempster, W. M. / Comparison of the computed flow field around a bubble growing at an orifice using PIV techniques. Proceedings of the Second International Symposium on Two-Phase Flow Modelling and Experimentation. Vol. 3 1999. pp. 1365
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Stickland, MT & Dempster, WM 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. vol. 3, pp. 1365.

Comparison of the computed flow field around a bubble growing at an orifice using PIV techniques. / Stickland, M.T.; Dempster, W. M.

Proceedings of the Second International Symposium on Two-Phase Flow Modelling and Experimentation. Vol. 3 1999. p. 1365.

Research output: Chapter in Book/Report/Conference proceedingChapter

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Stickland MT, Dempster WM. 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. Vol. 3. 1999. p. 1365