Abstract
Relations are derived which enable one to assess the size of fragments of a liquid-metal droplet after its fragmentation formed in the case of instantaneous contact between a hot metal surface and a coolant. The obtained experimental data demonstrate that the amplitude of pressure pulses generated during vapor film collapse (second boiling crisis) is several times lower than the values required for triggering a spontaneous vapor explosion. The assumption is validated according to which progress in studying the process of triggering a spontaneous vapor explosion is associated primarily with advances in understanding the mechanism of fragmentation of individual droplet.
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Translated from Teplofizika Vysokikh Temperatur, Vol. 44, No. 6, 2006, pp. 913–917.
Original Russian Text Copyright © 2006 by V. V. Glazkov, V. S. Grigor’ev, V. G. Zhilin, Yu. A. Zeigarnik, Yu. P. Ivochkin, K. G. Kubrikov, N. V. Medvetskaya, A. A. Oksman, and O. A. Sinkevich.
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Glazkov, V.V., Grigor’ev, V.S., Zhilin, V.G. et al. A possible mechanism of triggering a vapor explosion. High Temp 44, 908–912 (2006). https://doi.org/10.1007/s10740-006-0109-9
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DOI: https://doi.org/10.1007/s10740-006-0109-9