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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v8.i2-3.120
10 pages

VELOCITY MEASUREMENTS IN BUBBLY FLOWS WITH PARTICLE TRACKING VELOCIMETRY

Yassin A. Hassan
Department of Nuclear Engineering, Texas A&M University, College Station, TX 77843, USA
Javier Ortiz-Villafuerte
Department of Nuclear Engineering, Texas A&M University, College Station, TX 77843, USA
Donald R. Todd
Department of Nuclear Engineering, Texas A&M University, College Station, TX 77843, USA

RESUMO

Turbulence measurement has great importance in two-phase flows because of its close relationship to phase distribution. Since vortex stretching is associated with turbulence generation and dissipation, it is necessary to utilize a whole-field measurement method rather than point measurement techniques to obtain full-field characteristics. Particle image velocimetry (PIV) is a measurement technique that provides instantaneous velocity fields in a two-dimensional plane. Three-dimensional (3-D) measurements in a thin light slab are possible with a camera-pair, stereo system. In this article, a methodology that allows for velocity field measurements of both components of a two-phase bubbly flow is presented. Results from two-dimensional (2-D) measurements are presented.


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