APPLICATION OF THE LUIKOV APPROXIMATE
SOLUTIONS TO MATHEMATICAL DESCRIPTION
OF THE PROCESS OF SELF-FREEZING
OF MATERIALS BY DECREASING PRESSURE

V. A. Lashkov, A. V. Petrova, and
R. G. Safin

UDC 66.047.2

A mathematical model for the process of self-freezing 
of moist materials in a continuously increasing vacuum which is developed 
on the basis of the approximate solutions obtained by A. V. Luikov 
for drying of capillary-porous media is presented. Results of experimental 
investigations into the self-freezing of a moist cloth are given, 
from which the temperature of supercooling of the surface material 
layer, the temperature coefficient, and the velocity of deepening 
of the freezing surface are determined; all of these parameters are 
used in mathematical simulation of the above process.

Kazan State Technological University, Kazan, Russia. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 5, pp. 34-37, 
September-October, 2002. Original article submitted October 3, 
2001; revision submitted March 29, 2002.

JEPTER7492020028
JEPTER749208