Yang, B.Jafarian, M.Freidoonimehr, N.Arjomandi, M.2025-07-162025-07-162022International Journal of Multiphase Flow, 2022; 157:104250-1-104250-130301-93220301-9322https://hdl.handle.net/2440/146016The 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.en© 2022 Elsevier Ltd. All rights reserved.Lift coefficient; Bubble trajectory; Bubble hydrodynamics; Shear-induced lift force; Bubble image velocimetryJournal article10.1016/j.ijmultiphaseflow.2022.1042502024-05-30623476Yang, B. [0000-0002-8604-1692]Freidoonimehr, N. [0000-0002-2850-7861]Arjomandi, M. [0000-0002-7669-2221]