General correlations for gas-liquid mass transfer in laminar slug flow

摘要: Abstract Mass transfer is an important phenomenon that can be highly leveraged through hydrodynamics. Slug flow frequently associated with the enhancement in transport phenomena, and so, mass from a single Taylor bubble to flowing liquid numerically studied. This CFD work validates recently published study using pure oxygen bubbles expands it of other compounds (different Schmidt numbers) for different Reynolds numbers. The simulations were performed VOF + PLIC track gas-liquid interface. Flow fields solved simultaneously based on “species transport” model imposing constant concentration at results confirmed solute around remains thin layer along nose film regions. At rear, accumulates wake due closed recirculation characteristic laminar flow. Local global coefficients also determined these hydrodynamic data showed higher impact overall transfer, so general correlation between Sherwood, numbers was derived each developed correlations offer good prediction (deviations 10–20%).