Abstract Flow-induced vibration (FIV) at the spacer grid in fuel assembly of a Light Water Reactor (LWR) is leading cause failure. This project aims to produce simulation benchmark on experimental campaign MACE axial FIV cantilever beam an annular tube, that mimics configuration and environment typical LWR. The nuclear rod, which consists pellets filled Zirconium alloy cladding modelled experim...

Significance: Sep 30, 2002 Identified By: NRC Item Type: FIN Finding UNEXPECTED CHANGES IN UNIT 2 OPERATING PARAMETERS AND DRYER FAILURE DUE TO FLOW INDUCED VIBRATION. The failure to consider the impact of new flow induced vibration failure mechanisms on the Unit 2 steam dryer as part of the extended power uprate analysis resulted in unexpected and unpredictable changes in reactor power, reacto...