ANALYTICAL MODEL OF MIGRATION
OF RADIONUCLIDES IN POROUS MEDIA

G. Z. Serebryanyi and M. L. Zhemzhurov

UDC 621.311.25:519.6:532.546

A mathematical model of transfer of radionuclides in a 
porous medium has been considered. The analytical solution for this 
model has been obtained in a generalized form suitable for practical 
use. A procedure which makes it possible to determine the time of 
attainment of the maximum concentration by the radionuclides and the 
coordinates of the zone of influence of the radioactive contamination 
source has been proposed. The Padİ approximation of the scaled error 
function has been obtained; it can be employed in solving a wide range 
of problems of heat and mass transfer.

Joint Institute of Energy Problems and Nuclear Research, 
National Academy of Sciences of Belarus, 99 Acad. A. K. Krasin Str., 
Minsk, 220109, Belarus; email: irep@sosny.bas-net.by. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 6, pp. 146-150, November-December, 
2003. Original article submitted April 2, 2003.