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Journal of Visualization

, Volume 1, Issue 3, pp 291–301 | Cite as

Three-dimensional bubbly flow measurement using PIV

  • Hassan Y. A. 
  • Schmidl W. D. 
  • Ortiz-Villafuerte J. 
Article

Abstract

The experimental flow visualization tool, Particle Image Velocimetry (PIV), is being extended to determine the velocity fields in three-dimensional, two-phase fluid flows. In the past few years, the technique has attracted quite a lot of interest. PIV enables fluid velocities across a region of a flow to be measured at a single instant in time in the whole volume (global) of interest. This instantaneous velocity profile of a given flow field is determined by digitally recording particle (microspheres or bubbles) images within the flow over multiple successive video frames and then conducting flow pattern identification and analysis of the data. This paper presents instantaneous velocity measurements in various three-dimensional, bubbly two-phase flow situations. This information is useful for developing or improving existing computer constitutive models that simulate this type of flow field. It is also useful for understanding the detailed structure of two-phase flows.

Keywords

three-dimensional measurement particle image velocimetry bubbly flow conditional sampling Reynolds stress 

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Copyright information

© The Visualization Society of Japan 1998

Authors and Affiliations

  • Hassan Y. A. 
    • 1
  • Schmidl W. D. 
    • 1
  • Ortiz-Villafuerte J. 
    • 1
  1. 1.Department of Nuclear EngineeringTexas A&M UniversityCollege StationUSA

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