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Heat Transfer Research
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ISSN Print: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i7.40
pages 613-619

Setting of Nonstationary Boundary Conditions in the Front with Changes of Boiling Modes

Aleksandr N. Pavlenko
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Irina P. Starodubtseva
IT SB RAS

ABSTRACT

Results of numerical modeling of the evolution of a local site of film boiling with account of the nonstationary character of heat transfer to the vicinity of the boundary of various boiling modes are presented. New data on the dynamics of movement of the boundary of change of boiling modes with various deviations of the heat flux from the equilibrium state have been obtained. The effect of different types of nonstationarity on the dynamics of front development were studied in the numerical experiment. Calculations of the dynamics of development of the site of film boiling, obtained using an experimental dynamic curve of boiling are presented. They are compared with the results obtained earlier on the basis of quasi-stationary and two-zone curves of boiling used in a numerical model.


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