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International Heat Transfer Conference 11

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

EXPERIMENTAL STUDY OF THE EFFECT OF HYDRODYNAMIC UNSTEADINESS ON A TURBULENT TUBE GAS FLOW STRUCTURE AND HEAT TRANSFER

Guenrikh A. Dreitser
Department of Aviation-Space Thermal Techniques, Moscow Aviation Institute, Volokolamskoe shosse, 4, Moscow, 125993, Russia

V. B. Bukharkin
Moscow State Aviation Institute (Technical University), Moscow, Russia

V. M. Kraev
Moscow State Aviation Institute (Technical University), Moscow, Russia

A. S. Neverov
Moscow State Aviation Institute, Moscow, Russia

DOI: 10.1615/IHTC11.2480
pages 93-98

要約

To study the turbulent structure of on unsteady isothermal and nonisothermal gas flow in a tube the measurements methods are devised and experimental data on the profiles of the longitudinal and radial velocity components are received. The two-hot wire X-shaped mobile probe of constant temperature was used. The results of the profiles of the longitudinal and radial velocity components , their pulsations, the temperature pulsations, their correlations and heat transfer under gas flow acceleration and deceleration conditions are presented. These parameters in the unsteady processes are shown to differ noticeably from their quasi-steady values.

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