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Transport and fast dissolution of CO 2 bubbles in realistic microfluidic flows: Transient dynamics and collective effects
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DOI：10.1016/j.ijmultiphaseflow.2026.105747.png)
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Abstract
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• CO 2 bubble train dissolution and transport experimentally studied over nearly the entire dissolution in microchannels. • Real operating conditions reveal bubble acceleration, lateral migration, and strong hydrodynamic interactions. • Axial and vertical velocities deviate from classical isolated-bubble predictions in developed flows. • Sherwood number scales as Sh∝Pe(d∗)3 ; transient and collective dynamics events enhance mass transfer by 8–60%. • High dissolution regimes reached at unprecedented Péclet numbers ranging from 8,700 to 52,000.
Keywords:
Gas dissolution
Spherical bubbles
Microfluidics
Buoyant bubbles
Inertial lift force
CO2 absorption
Mass transfer
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