Journal
PHYSICS OF FLUIDS
Volume 21, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3151999
Keywords
film flow; flow visualisation; liquid films; liquid waves; stratified flow; two-phase flow
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Funding
- RF President [NSh-4366.2008.8]
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The wavy structure of liquid film in downward annular gas-liquid flow with and without liquid entrainment is examined for a wide range of gas velocities using high-speed laser-induced fluorescence technique. It is shown that the wavy structure is always represented by two types of waves, long-lived and short-lived waves with the latter always generated at the back slopes of the long-lived waves. Main regularities of short-lived wave generation and evolution are also described.
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