000			02383nab a2200301 c 4500
001			vtls000624080
003			RU-ToGU
005			20210922093617.0
007			cr |
008			180405|2015 ru s a eng d
024	7		_a10.1134/S1063784215090157 _2doi
035			_ato000624080
040			_aRU-ToGU _brus _cRU-ToGU
100	1		_aPakhomov, Maksim A. _9448297
245	1	0	_aSimulation of the turbulent structure of a flow and heat transfer in an ascending polydisperse bubble flow _cM. A. Pakhomov, V. I. Terekhov
504			_aБиблиогр.: 35 назв.
520	3		_aWe report on the results of numerical simulation of the turbulent structure of a flow in a vertical polydisperse gas—liquid stream in a tube. The mathematical model is based on the application of the Euler description taking into account the inverse effect of bubbles on the averaged characteristics and turbulence of the carrying phase. Turbulent characteristics of the liquid are calculated using the model of transfer of Reynolds stress tensor components. The variation of the number of bubbles is described using the model of average volume of a bubble taking into account their splitting, coalescence, and expansion upon a change in the gas temperature. The effect of the change in the volumetric consumption gas content, the initial temperature of the liquid, and its velocity on the structure of the flow and on the heat transfer in the two-phase flow is analyzed. The addition of the gas phase to the turbulent liquid causes an increase in the heat transfer by more than 2.5 times. Comparison of the results of simulation with experimental data shows that the approached developed here makes it possible to simulate bubble turbulent flows with heat exchange with the tube wall in a wide range of gas contents.
653			_aтурбулентный поток
653			_aтеплообмен
653			_aпузырьковые потоки
655		4	_aстатьи в журналах _9745982
700	1		_aTerekhov, Victor I. _9448296
773	0		_tTechnical physics _d2015 _gVol. 60, № 9. P. 1268-1276 _x1063-7842
852	4		_aRU-ToGU
856	7		_uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000624080
908			_aстатья
999			_c431360