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Advances in Heat Transfer Engineering

ISSN:
1-56700-198-1 (Print)

HIGH TEMPERATURE HEAT TRANSFER FOR SUBSONIC DIATOMIC GASEOUS FLOWS IN TUBES

Algimantas Ambrazevicius
Lietuvos karo akademija, Silo g. 5A, LT-07104 Vilnius, Lithuania

Abstract

General review of main theoretical and experimental investigations in the world during XX age and especially made in Lithuanian Energy Institute by research advising of academician Algirdas Zhukauskas is presented. The main scientific problem was to ascertain the effect of temperature factor Tf/Tw on heat transfer equations during subsonic (low of cold gases (Tf) along hot wall (Tw), when Tf/Tw less 1 and during flow of hot diatomic gases along cold wall, when Tf/Tw more 1. In the first case, the effect of temperature factor in numerical equations can be determined by Tf/Tw in degree +0.25, in the second case, there is no practical effect on equations, because the degree by Tf/Tw equals ±0.