Modelling of Aquitaine II pipe whipping test with the EUROPLEXUS fast dynamics code

Serguei Potapov (1) , Pascal Galon (2)

1 EDF R&D AMA - Analyses Mécaniques et Acoustiques
2 DYN - Laboratoire d'études de DYNamique

This paper presents a numerical simulation with the EUROPLEXUS fast dynamics software of a pipe whipping phenomenon occurring in the thermal hydraulic conditions of a loss of coolant accident in a PWR primary circuit. Different physical phenomena take place simultaneously during the rupture and the whipping of the pipe such as plasticity, contact, large displacements, two-phase flow regime and fluid structure interaction. Two kinds of numerical models – a simplified pipeline model and a mixed 1D/3D model – are considered and compared throughout modelling and computation. Numerical results are compared with experimental data belonging to the Aquitaine II test campaign.

Domaines: Physique Nucléaire Théorique [nucl-th]; Physique Nucléaire Expérimentale [nucl-ex]

Serguei Potapov, Pascal Galon. Modelling of Aquitaine II pipe whipping test with the EUROPLEXUS fast dynamics code. Nuclear Engineering and Design, 2005, 235 (17-19), pp.2045-2054. ⟨10.1016/j.nucengdes.2005.05.012⟩. ⟨cea-03190151⟩