ARTICLE:

• INVERSE PROBLEMS METHOD FOR STUDY OF HEAT TRANSFER IN SOLIDS INTERACTED WITH GAS FLOWS LOADED BY SOLID PARTICLES  download article

Aleksey V. Nenarokomov
Professor of Mechanical Engineering, Department of Space System Engineering, Moscow State Aviation Institute, 4 Volokolamskoe Shosse, Moscow, 125871, Russia

O. M. Alifanov
Moscow State Aviation Institute, Moscow, Russia

E. A. Artioukhine
University of Franche-Comte, France

I. V. Repin
Moscow Aviation Institute, Russia

ABSTRACT

The present paper outlines a method of processing and analysing experimental data based on the methodology of the solution of inverse heat transfer problems. An algorithm and the results of the computational and experimental study of heat transfer in the vicinity of the critical point of a specimen in a high-enthalpy particles-loaded flow are presented. One of the main difficulties here is how to determine coefficients of the mathematical model, which provide its adequacy to real processes. Direct measurement of most characteristics of heat transfer is usually impossible, and their theoretical estimates are often far from being true and often contradictory. That is why, the unknown parameters of the heat-balance equation at the external moving boundary of the specimen are determined from the inverse problem of heat transfer, which is solved by the method of iterative regularization. The results of experimental data processing for the interaction of particles-loaded flows with plane surfaces of the cylindrical specimen are also presented as well as the optimal experiment design problems for corresponded experiments.

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