A Study on Droplet Carryover in Gas-Liquid Separator Experimental Investigation on the Minimum Breakup Length of Two-Phase Fluid Jet

Minimum breakup length of gas-liquid two-phase jet was explored experimentally since it affects the droplet carryover characteristics of gas-liquid separators used in various industrial plants. In the experiments, air and water were used as the test liquids, and the two-phase jet was discharged vert...

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Published inJAPANESE JOURNAL OF MULTIPHASE FLOW Vol. 34; no. 1; pp. 75 - 81
Main Authors ZHAN, Yi, SUN, Guofu, OKAWA, Tomio, IRIKURA, Motoki
Format Journal Article
LanguageJapanese
English
Published Osaka City THE JAPANESE SOCIETY FOR MULTIPHASE FLOW 15.03.2020
Japan Science and Technology Agency
Subjects
Breakup
Core flow
Deformation mechanisms
Droplet carryover
Droplets
Film thickness
Flow velocity
Gas flow
Gas-liquid two-phase jet
Industrial plants
Liquid film thickness
Minimum breakup length
Nozzles
Separators
Shear forces
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Summary:Minimum breakup length of gas-liquid two-phase jet was explored experimentally since it affects the droplet carryover characteristics of gas-liquid separators used in various industrial plants. In the experiments, air and water were used as the test liquids, and the two-phase jet was discharged vertically downward from a circular nozzle. An annular liquid film was formed at the nozzle exit. The deformation of the liquid film became significant with an increase in the gas flow rate, suggesting that the deformation was caused mainly by the shearing force exerted by the high-speed gas core flow. The breakup of liquid film occurred following the deformation. The minimum breakup length was fairly proportional to the liquid film thickness evaluated at the nozzle exit. The average proportionality factor was 59 in the present experiments.
ISSN:0914-2843
1881-5790
DOI:10.3811/jjmf.2020.006