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THERMALHYDRAULIC BEHAVIOR OF A MOLTEN CORE WITHIN A STRUCTURE, SIMULATED BY THE TOLBIAC CODE

DOI: 10.1615/ICHMT.1995.RadTransfProcHeatMassTransfSevNuclReactAcc.180

B. Spindler
Commissariat à l'Energie Atomique, FRANCE, Direction des Racteurs Nucléaires Département de Thermohydraulique et de Physique, Service de Thermohydraulique des Reacteurs Centre d'Etudes Nucléates de Grenoble, GRENOBLE CEDEX 9

G.-M. Moreau
Commissariat à l'Energie Atomique, FRANCE, Direction des Racteurs Nucléaires Département de Thermohydraulique et de Physique, Service de Thermohydraulique des Reacteurs Centre d'Etudes Nucléates de Grenoble, GRENOBLE CEDEX 9

S. Pigny
Commissariat à l'Energie Atomique, FRANCE, Direction des Racteurs Nucléaires Département de Thermohydraulique et de Physique, Service de Thermohydraulique des Reacteurs Centre d'Etudes Nucléates de Grenoble, GRENOBLE CEDEX 9

Resumo

The TOLBIAC code is devoted to the simulation of the behavior of a molten core within a structure (pressure vessel or core catcher). The code is briefly described: 3D meshing, 3 phases (liquid metals, liquid oxides and gas), physical properties and constitutive laws, wall ablation and crust formation. Some results are presented in order to illustrate the code potentialities: the behavior of a molten core in a vessel lower head on one hand, and in an external core catcher on the other hand.

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