Trajectory of a spherical bubble rising in a fully developed laminar flow

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dc.contributor.authorYang, B.
dc.contributor.authorJafarian, M.
dc.contributor.authorFreidoonimehr, N.
dc.contributor.authorArjomandi, M.
dc.date.issued2022
dc.description.abstractThe rising trajectory of bubbles subjected to shear-induced lift force in a vertical channel is of great interest for designing and optimising a variety of electrochemical equipment. In this work, the rising trajectory of a spherical microbubble with a diameter of 0.3-1.0mm in a vertical channel with a fully developed laminar flow is investigated experimentally. Subsequently, the lift and drag forces on the bubble are assessed. Due to the limitation of the existing correlations for lift force coefficient, a new correlation is developed, which can be used to estimate the trajectory of a bubble in a vertical channel. The effect of flow velocity gradient and bubble diameter on the bubble motion is discussed to control bubble rising trajectory. It is concluded that the lift coefficient for a spherical microbubble in vertical channels with a fully developed laminar flow is slightly higher than the reported shear lift coefficient for larger bubbles rising in a high viscous liquid.
dc.description.statementofresponsibilityBo Yang, Mehdi Jafarian, Navid Freidoonimehr, Maziar Arjomandi
dc.identifier.citationInternational Journal of Multiphase Flow, 2022; 157:104250-1-104250-13
dc.identifier.doi10.1016/j.ijmultiphaseflow.2022.104250
dc.identifier.issn0301-9322
dc.identifier.issn0301-9322
dc.identifier.orcidYang, B. [0000-0002-8604-1692]
dc.identifier.orcidFreidoonimehr, N. [0000-0002-2850-7861]
dc.identifier.orcidArjomandi, M. [0000-0002-7669-2221]
dc.identifier.urihttps://hdl.handle.net/2440/146016
dc.language.isoen
dc.publisherElsevier BV
dc.rights© 2022 Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.ijmultiphaseflow.2022.104250
dc.subjectLift coefficient; Bubble trajectory; Bubble hydrodynamics; Shear-induced lift force; Bubble image velocimetry
dc.titleTrajectory of a spherical bubble rising in a fully developed laminar flow
dc.typeJournal article
pubs.publication-statusPublished

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