ON THE PROBLEM OF NONISOTHERMAL MASS TRANSFER IN POROUS MEDIA

N. N. Grinchik,a P. V. Akulich,a P. S. Kuts,a 
N. V. Pavlyukevich,a and V. I. Terekhovb 

UDC 536.24:66.047

We propose a model of nonstationary processes of interrelated 
heat and mass transfer in porous media that takes into account the 
mutual influence of vapor and liquid pressures determined by the contribution 
of the capillary and surface forces and temperature on the interphase 
mass-transfer intensity, the thermocapillary flows, and the mechanical 
and dynamic equilibrium conditions of thin layers of liquids on curved 
interfaces. The results of the numerical solution of the system of 
equations of heat and mass transfer in capillary-porous bodies in 
discrete and continuous heating as well as with allowance for the 
effect of nonequilibrium of phase transformations have been analyzed.

a A. V. Luikov Heat and Mass 
Transfer Institute, National Academy of Sciences of Belarus, Minsk, 
220072, Belarus; b Institute of Thermal Physics, 
1, Akad. Lavrent'ev Ave., Novosibirsk, 630009, Russia; email: 
terekhov@itp.nsc.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, 
No. 6, pp. 129-141, November-December, 2003. Original article 
submitted February 12, 2003.