Application of a high-speed laser-induced fluorescence technique for studying the three-dimensional structure of annular gas–liquid flow

The wavy structure of liquid film in annular gas–liquid flow was studied using a high-speed modification of the laser-induced fluorescence (LIF) technique, which was adapted for three-dimensional measurements. The three-dimensional structure of different types of waves in regimes with and without li...

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Bibliographic Details
Published in:Experiments in fluids 2012-07, Vol.53 (1), p.77-89
Main Authors: Alekseenko, Sergey, Cherdantsev, Andrey, Cherdantsev, Mikhail, Isaenkov, Sergey, Kharlamov, Sergey, Markovich, Dmitry
Format: Article
Language:English
Subjects:
Annular
Circumferences
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Fluid dynamics
Fluid flow
Fluid- and Aerodynamics
Fluorescence
Heat and Mass Transfer
High speed
Liquids
Research Article
Three dimensional
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Summary:The wavy structure of liquid film in annular gas–liquid flow was studied using a high-speed modification of the laser-induced fluorescence (LIF) technique, which was adapted for three-dimensional measurements. The three-dimensional structure of different types of waves in regimes with and without liquid entrainment was investigated. A comparison of the circumferential size of different types of waves was performed. Disturbance waves at high liquid Reynolds numbers were shown to be circumferentially non-uniform, and it was shown that this non-uniformity affects the generation of ripples.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-011-1200-5