ON COMPRESSION AND RAREFACTION WAVES IN A DISPERSED LAYER

Yu. S. Teplitskii and V. I. Kovenskii

UDC 532.546

Mathematical modeling of nonstationary filtration regimes 
with instantaneous reduction (increase) in the pressure at entry into 
the granular bed has been carried out within the framework of the 
two-temperature approximation. The regularities of transmission of 
rarefaction and compression waves have been investigated. Equations 
for calculation of the minimum and maximum temperature of the heat-transfer 
agent in criterial form and of the time of reaching a new stationary 
state have been obtained.

A. V. Luikov Heat and Mass Transfer Institute, National Academy 
of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; 
email: kvi@hmti.ac.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 81, No. 6, pp. 1125-1132, November-December, 
2008. Original article submitted October 22, 2007.