Analysis of multiphase systems through particle image velocimetry

Conference · Mon Dec 30 23:00:00 EST 1996

OSTI ID:484989

Reese, J; Lee, D J; Fan, L S ^[1]; Mudde, R F ^[2]

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1. Ohio State Univ., Columbus, OH (United States). Dept. of Chemical Engineering
2. Delft Univ. of Technology (Netherlands). Kramers Lab voor Fysische Technologie

The flow field of a two-dimensional air-water bubble column (15 cm or 32 cm in width) is investigated experimentally using Particle Image Velocimetry (PIV). The velocity field of the liquid phase is seen to be transient and can not be described accurately on a time/volume averaged basis. Instead, it is shown that the averaged flow field is a result of the interplay between the swinging motion of a central bubble stream and vortical structures in the liquid. The PIV technique is capable of providing quantitative data on the behavior of these structures, such as their size and lifetime as well as magnitude of the velocity inside the vortices. The PIV technique proves to be an excellent tool to study the hydrodynamics of the two-phase flow present in the column and offers new opportunities to understand the heat and mass transfer in multiphase flow systems.

• OSTI ID: 484989
• Report Number(s): CONF-960815--
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DATA ANALYSIS
FLOW VISUALIZATION
HEAT TRANSFER
HYDRODYNAMICS
MASS TRANSFER
MEASURING METHODS
MULTIPHASE FLOW
PERFORMANCE
TWO-PHASE FLOW
VELOCIMETERS