The study of the hydrodynamics of bubble downflow at small gas-content by means of PIV / PFBI

Experiments on evaluation of the effect of bubbles on the hydrodynamic structure of two-phase bubbly downflow were carried out by means of PIV / PLIF method. Experiments were performed at Re = 5000 and gas flow rate ratio β = 1%. Data were obtained on the distribution of liquid velocity and its fluc...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1677; no. 1; pp. 12057 - 12061
Main Authors Evdokimenko, I A, Lobanov, P D
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2020
Subjects
Algorithms
Computational fluid dynamics
Flow velocity
Fluid flow
Gas flow
Hydrodynamics
Physics
Velocity distribution
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Summary:Experiments on evaluation of the effect of bubbles on the hydrodynamic structure of two-phase bubbly downflow were carried out by means of PIV / PLIF method. Experiments were performed at Re = 5000 and gas flow rate ratio β = 1%. Data were obtained on the distribution of liquid velocity and its fluctuations, as well as on the mean bubble diameter. The results were processed using a computer bubble detection algorithm. To validate the received data, they were compared with the results obtained in [1] for the same pipe using electrochemical method. A good agreement was found for R. M. S. of liquid velocity distribution for different methods.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1677/1/012057