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Enhancing Nuclear Safety


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Modelling of fuel-coolant interaction with the multiphase flow code MC3D

Multiphase Flow in Industrial Plants (MFIP 12) Conference / Ischia (Italy), 21-23 September 2011

Document type > *Congrès/colloque

Keywords >

Research Unit > IRSN/DSR/SAGR/BPhAG

Authors > MEIGNEN Renaud, PICCHI Stéphane, LAMOME Julien

Publication Date > 21/09/2011

Summary

MC3D is a multi-component thermal-hydraulic 3D software developed by IRSN with collaboration of CEA. It is based on an Eulerian description of the mass, momentum and energy balances of multiphase compressible flows. The major application of MC3D has been the development of two models for Fuel-Coolant Interaction (FCI), one for each step of the interaction, namely premixing and explosion. We firstly present the general architecture of the code (solver), then some numerical specificities of the code. Then we describe some major challenges in FCI physical modeling, and conclude with foreseen improvements of both code general structure and physical modeling.

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Involved IRSN laboratory

 Physics of Severe Accidents Sections (BPhAG)

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