The effect of a concurrent gas flow on gasliquid mass transfer
Abstract
A theory for the mass transfer process was developed. It was assumed that the largest convective motions in the flow control the rate of mass transfer. Measurements of mass transfer coefficients for the absorption of oxygen by water films were made for concurrent flows in a horizontal rectangular channel, and for concurrent and freefalling downflow in a oneinch pipe. The measured values of the Sherwood number for concurrent flows were up to three times as great as would be predicted from this relation. This increase in Sherwood number was correlated with a dimensionless group similar to a Martinelli parameter which is characteristic of two phase flows. An explanation for this effect is given in terms of the way that the scales of the convective motions are related to bulk flow parameters.
 Publication:

Ph.D. Thesis
 Pub Date:
 1977
 Bibcode:
 1977PhDT.......105H
 Keywords:

 Gas Flow;
 GasLiquid Interactions;
 Mass Transfer;
 Two Phase Flow;
 Convective Flow;
 Eddy Viscosity;
 Reynolds Number;
 Shear Flow;
 Turbulent Diffusion;
 Fluid Mechanics and Heat Transfer