Collect. Czech. Chem. Commun. 1986, 51, 75-80

A contribution to the problem of turbulent mass transfer at high values of the Schmidt number and to the hydrodynamics of the turbulent boundary layer

Václav Kolář, František Vašák and Zdeněk Brož

Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences 165 02 Prague 6 - Suchdol


It has been shown in the paper that under the turbulence (Re > 104) and at high values of the Schmidt number (Sc > 103), when the principal resistance to mass transfer is concentrated in the laminar layer immediately adhering to the interface, significant instabilities appear induced by the turbulent disturbances in the neighbouring transition layer, or by the discontinuities at the interface. Parameters have been determined characterizing this phenomenon on the basis of experimental data and their values have been compared with the data published in the literature as characteristics of the periodic viscous sublayers.