Abstract
The fragmentation of a high-temperature melt jet in water is one of the principal mechanisms underlying the formation of a coarsely dispersed water-steam-melt mixture in the onset and development of a hypothetical severe nuclear power plant accident with core meltdown. Under certain conditions the melt can mix explosively with the water in such a mixture with potentially detrimental results for the reactor housing. The rate of fragmentation of a melt jet largely governs the characteristics of the resulting mixture and its capacity to detonate.
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