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Communication Dans Un Congrès Année : 2000

Comparison of a Core Disruptive Accident simulation with the MARS experimental test

Marie-France Robbe
Jean-Yves Cariou
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Eloi Treille
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Résumé

In case of a Hypothetical Core Disruptive Accident (HCDA) in a Liquid Metal Reactor, the interaction between fuel and liquid sodium creates a high pressure gas bubble in the core. The violent expansion of this bubble loads the vessel and the internal structures, whose deformation is important. The experimental test MARS simulates a HCDA in a small scale mock-up containing all the significant internal components of a Fast Breeder Reactor. The test-facility is filled with water topped by an argon blanket and the explosion is generated by an explosive charge. This paper presents a numerical simulation of the test with the CASTEM-PLEXUS code. The top closure is represented by massive structures. The main internal structures are described by shells while the peripheral massive structures are taken into account with a pressure loss because their geometry is too complicated to mesh them. The computed results are compared to the experimental results and the ones obtained in a previous numerical simulation with the CASTEM-PLEXUS code.
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Dates et versions

cea-04177342 , version 1 (04-08-2023)

Identifiants

  • HAL Id : cea-04177342 , version 1

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Marie-France Robbe, Jean-Yves Cariou, Eloi Treille, Michel Lepareux. Comparison of a Core Disruptive Accident simulation with the MARS experimental test. International Conference on Numerical Methods in Continuum Mechanics 2000, Sep 2000, Liptovsky Jan, Slovakia. ⟨cea-04177342⟩

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