THERMAL MATHEMATICAL MODEL OF THE H-SHAPED BLOCK OF A NONHERMETIC 
INSTRUMENTAL COMPARTMENT OF A GEOSTATIONARY SPACECRAFT

V. A. Burakov,a V. V. Elizarov,a E. N. Korchagin,b 
V. P. Kozhukhov,b A. S. Tkachenko,a and I. V. Shcherbakovaa  

UDC 629.78.048.7.001.24

A dynamic thermal mathematical model in distributed-lumped 
parameters, a computational algorithm, and a software of numerical 
calculations have been developed. The results of these calculations 
for multidimensional nonstationary temperature fields in operation 
of the on-board devices and a network of uncontrolled heat pipes in 
a nontraditional H-shaped block of the service-system module of a 
nonhermetic instrumental compartment of promising durable geostationary 
spacecraft under the conditions of orbital operation have been obtained.

aScientific-Research Institute 
of Applied Mathematics and Mechanics at Tomsk State University, Tomsk, 
Russia; bAcademician M. F. Reshetnev Science 
and Production Association of Applied Mechanics, Zheleznogorsk, Russia; 
email: bva@niipmm.tsu.su. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 76, No. 4, pp. 142-149, July-August, 2003. Original article 
submitted May 6, 2002; revision submitted November 11, 2002.