Abstract
It was confirmed in experiments that during contact between cool and hot liquids, the lower sub-cooling of the cool liquid below the saturation temperature changes the characteristics of a vapor layer covering the fragments of hot liquid. This factor also decreases the probability of spontaneous direct contact between two kinds of liquid, explosive incipience of the cool liquid, and pressure pulse generation (the latter triggers fine fragmentation of hot coolant and vapor explosion). The mechanism that describes this trend in vapor layer behavior has been described.
Similar content being viewed by others
References
E.V. Stepanov, Physical Aspects of Vapor Explosion, IAE Preprint No. 54503/3, Moscow, 1991.
G. Berthoud, Vapor explosions, Annual Review of Fluid Mechanics, 2000, Vol. 32, P. 573–611.
T.E. Dullforce, D.J. Buchanan, and R.S. Perckover, Self-triggering of small-scale fuel-coolant interactions: I. Experiments, J. Physics D: Applied Physics, 1974, Vol. 9, P. 1295–1303.
M. Furuya, K. Matsumura, and I. Kimoshita. A linear stability analysis of a vapor film in terms of the triggering of vapor explosions, J. Nuclear Sci. and Technology, 2002, Vol. 39, No. 10, P. 1025–1032.
K. Matsumura and H. Nariari, Self-triggering mechanism of vapor explosions for molten tin in water, J. Nuclear Sci. and Technology, 1996, Vol. 33, No. 4, P. 298–306.
K. Matsumura and H. Nariari, Self-triggering mechanism of vapor explosions for large-scale experiments involving fuel simulant melt, J. of Nuclear Sci. and Technology, 1997, Vol. 34, No. 3, P. 248–255.
V.G. Zhilin, Yu.A. Zeigarnik, Yu.P. Ivochkin, A.A. Oksman, and K.I. Belov, An experimental investigation of the characteristics of explosive boiling of subcooled water on a hot surface under conditions of change of boiling modes, High Temperature, 2009, Vol. 47, No. 6, P. 856–863.
V.V. Glazkov, V.G. Zhilin, Yu.A. Zeigarnik, Yu.P. Ivochkin, V.S. Igumnov, O.A. Sinkevich, V.R. Tsoi, and V.G. Shvets, A study into development of instability and collapse of vapor layer on a heated solid hemispherical surface, High Temperature, 2000, Vol. 38, No. 6, P. 900–908.
V.S. Grigoriev, V.G. Zhilin, Yu.A. Zeigarnik, Yu.P. Ivochkin, V.V. Glazkov, and O.A. Sinkevich, Behavior of vapor film on a strongly overheated surface submerged into subcooled water, High Temperature, 2005, Vol. 43, No. 1, P. 103–118.
M.A. Mikheev and I.M. Mikheeva, Fundamentals of Heat Transfer, Energy, Moscow, 1977.
Author information
Authors and Affiliations
Corresponding author
Additional information
Research was financially supported by the Russian Foundation for Basic Research (Project No. 11-08-1262-a).
Rights and permissions
About this article
Cite this article
Ivochkin, Y.P., Vavilov, S.N., Zeigarnik, Y.A. et al. About lack of fragmentation for hot droplets at low subcooling of coolant. Thermophys. Aeromech. 19, 429–434 (2012). https://doi.org/10.1134/S0869864312030080
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0869864312030080