Hydrodynamic Loads on a PWR Primary Circuit due to a LOCA - Pipe Computations with the CASTEM-PLEXUS Code

Marie-France Robbe (1) , Michel Lepareux (1) , Christophe Trollat (2)

1 DYN - Laboratoire d'études de DYNamique
2 EDF - EDF

The hydrodynamic loads due to a LOCA are computed with the CASTEM-PLEXUS code for a PWR primary circuit. An hydraulic model of the complete circuit (pipes, pumps, steam generators and reactor) is performed here assuming rigid pipes. CASTEM-PLEXUS being able to carry out FSI, the future work will take into account this effect.

Keywords: PWR; primary circuit; hydraulic circuit; pipe model; hypothetical rupture of a primary pipe; Loss of Coolant Accident (LOCA); break opening; guillotine rupture; leakage; blowdown; dynamic transient; depressurization wave; acoustic wave propagation; Europlexus; modelling; reactor nominal rating

Domains: Computer Science [cs]; Modeling and Simulation; Engineering Sciences [physics]; Mechanics [physics.med-ph]; Structural mechanics [physics.class-ph]; Engineering Sciences [physics]; Mechanics [physics.med-ph]; Fluids mechanics [physics.class-ph]

Marie-France Robbe, Michel Lepareux, Christophe Trollat. Hydrodynamic Loads on a PWR Primary Circuit due to a LOCA - Pipe Computations with the CASTEM-PLEXUS Code. SMIRT 15 - 15th International Conference on Structural Mechanics In Reactor Technology, Aug 1999, Seoul, South Korea. pp.J05/4, 199-206. ⟨cea-03122148⟩