Acoustic cavitation as a mechanism of fragmentation of hot molten droplets in in cool liquids. [LMFBR]

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A mechanism that explains several of the observations of fragmentation of hot molten drops in coolants is presented. The mechanism relates the fragmentation to the development of acoustic cavitation and subsequent bubble growth within the molten material. The cavitation is assumed due to the severe pressure excursions calculated within the hot material as a result of the pressure pulses accompanying coolant vaporization at the sphere surface. The growth of the cavitation vapor nuclei inside the hot drop is shown to be influenced by the subsequent long duration surface pressure pulses. The variation of the amplitude of these surface pulses with … continued below

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70 pages

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Kazimi, M.; Watson, C.; Lanning, D.; Rohsenow, W. & Todreas, N. November 1, 1976.

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A mechanism that explains several of the observations of fragmentation of hot molten drops in coolants is presented. The mechanism relates the fragmentation to the development of acoustic cavitation and subsequent bubble growth within the molten material. The cavitation is assumed due to the severe pressure excursions calculated within the hot material as a result of the pressure pulses accompanying coolant vaporization at the sphere surface. The growth of the cavitation vapor nuclei inside the hot drop is shown to be influenced by the subsequent long duration surface pressure pulses. The variation of the amplitude of these surface pulses with experimental variables is shown to exhibit the same trends with these variables as does the variation in extent of fragmentation.

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70 pages

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  • November 1, 1976

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  • Jan. 23, 2019, 12:54 p.m.

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  • March 4, 2021, 1:14 a.m.

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Kazimi, M.; Watson, C.; Lanning, D.; Rohsenow, W. & Todreas, N. Acoustic cavitation as a mechanism of fragmentation of hot molten droplets in in cool liquids. [LMFBR], report, November 1, 1976; Cambridge, Massachusetts. (https://digital.library.unt.edu/ark:/67531/metadc1408854/: accessed May 27, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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