Geometry of the vapor phase in explosive near-wall boiling-up / Pavlov P. A. // THERMOPHYSICS AND AEROMECHANICS. - 2016. - V. 23, l. 4. - P. 543-552.

ISSN/EISSN:

0869-8643 / 1531-8699

Type:

Article

Abstract:

Methods for calculating the geometric characteristics of the vapor phase in explosive wall boiling-up processes on a metal wall are analyzed. A monotonic growth of superheat in the liquid above the equilibrium evaporation temperature is specified. We show that the choice of the model for bubble interaction has a profound influence on the geometric characteristics which define the value of the heat flux. Computer simulation was employed to obtain the dependence of dry area on time in two interaction models. We have found that, for a model with instantaneous bubble coalescence, the dry area can be evaluated by the Kolmogorov formula using a correction factor for the most probable triple interaction. An approximation of the distribution length of wetting line over the lifetime of wetting-line segments is obtained. The possibility of using the obtained data for calculation of rapid condensation is analyzed.

Author keywords:

boiling; condensation; fluctuation nucleation; wetting line; dry area

DOI:

10.1134/S0869864316040077

Web of Science ID:

ISI:000387030600007

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUL
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-8699
Research-Areas	Thermodynamics; Mechanics
Web-of-Science-Categories	Thermodynamics; Mechanics
Author-Email	pavpav@nm.ru
Funding-Acknowledgement	Ural Branch of the Russian Academy of Sciences {[}7, 15-7-12-8]
Funding-Text	The study is performed within the basic research program No. 7 of the Ural Branch of the Russian Academy of Sciences (Project 15-7-12-8).
Number-of-Cited-References	11
Usage-Count-Since-2013	1
Journal-ISO	Thermophys. Aeromechanics
Doc-Delivery-Number	EB0JR