STABILITY OF FILTRATION COMBUSTION IN A CYLINDRICAL 
RADIATION HEATER WITH A POROUS WORKING MEDIUM

K. V. Dobrego , S. A. Zhdanok ,
A. V. Krauklis , E. I. Khanevich ,
A. I. Zaruba , D. V. Sakhnovich , and
A. N. Ovcharenko

UDC 536.46

Special features of the localization of a combustion 
front in a cylindrical radiation heater with a porous working medium, 
for which use was made of charges of aluminar, magnesite sand, and 
expanded clay aggregate with different grain sizes, are studied experimentally. 
A qualitative analysis of thermohydrodynamic instability of filtration 
combustion (FC) is made, based on which the existence of a critical 
radius of localization of the combustion front in the cylindrical 
burner is established. A qualitative agreement between analysis and 
experiment in filtration from the center to the periphery is shown.

JEPTER7492019998
JEPTER749208