Modelling of the corium propagation from RPV through the PCV to the suppression chamber is challenging. A geometry of approximately one fourth of the RPV and a part of PCV until the jet deflector was created and tested to reproduce the final debris shape as measured by TEPCO. A multiphase Volume-Of-Fluid (VOF) method proved that it can be used under clearly defined assumptions. It was figured out that using the viscosity values for completely liquefied corium and steel makes no sense in modelling of debris flow because the final PCV debris shape cannot be reproduced under these conditions.
Language |
: | English |
|---|---|---|
Journal |
: | Proceedings of the Pacific Basin Nuclear Conference (PBNC2026) (Internet) |
Volume |
: | |
Number |
: | |
Pages |
: | 8 Pages |
Publication Year/Month |
: | 2026/04 |
Meeting title |
: | Pacific Basin Nuclear Conference 2026 (PBNC 2026); Nuclear Energy for AI-powered World |
Held date |
: | 2026/04 |
Location (city) |
: | Busan |
Location (country) |
: | Korea |
Paper URL |
: |
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Keywords |
: | 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident |
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: |
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