每年出版 4 期
ISSN 打印: 2169-2785
ISSN 在线: 2167-857X
Indexed in
DYNAMIC ACTIVATION OF SINGLE VAPOR EMBRYO GROWTH: ANALYSES OF THERMAL AND MOMENTUM INERTIA EFFECTS
摘要
In this paper, the onset of nucleate boiling in a narrow space is experimentally studied considering one of the walls is dynamically deformed. A parametric study is performed to analyze the effects of the deformation parameters on the temperature at the nucleation onset. A huge decrease of the wall superheat at the nucleation incipience is obtained, especially for high amplitude and frequency of the stationary wave of deformation. This decrease is much higher than the one predicted by existing nucleation theory. An analysis of the thermal and inertia effects is carried out showing that thermal and inertia effects cannot explain this important decrease of the nucleation incipience wall superheat and that the embryo can be described as a succession of static states. It is concluded that for the range of parameters studied, only the mechanical nonequilibrium of the interface in a quasi-isothermal environment seems to govern the embryo instability.
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Kotov Artem N., Gurashkin A. L. , Starostin Aleksandr A. , Skripov Pavel V., LOW-ENERGY ACTIVATION OF SUPERHEATED N-PENTANE BOILING-UP BY LASER PULSE AT THE FIBER-LIQUID INTERFACE , Interfacial Phenomena and Heat Transfer, 10, 3, 2022. Crossref