Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 90 / Number 1 / Pages 19-27
M. L. Corradini, G. A. Moses
Nuclear Science and Engineering / Volume 90 / Number 1 / Pages 19-27
Format:electronic copy (download)
The vapor explosion process involves the mixing of fuel with coolant prior to the explosion. A number of analysts have identified limits to the amount of fuel/coolant mixing that could occur within the reactor vessel following a core melt accident. Past models are reviewed and a simplified approach is suggested to estimate the upper limit on the amount of fuel/coolant mixing possible. The approach uses concepts first advanced by Fauske in a different way. The results indicate that water depth is an important parameter as well as the mixing length scale Dmix, and for large values of Dmix the fuel mass mixed is limited to <7% of the core mass.
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