Significant nuclear fuel assembly design innovations are regularly incorporated to meet the highest expectations in terms of safety, performance and flexibility. Despite the continuous upgrades of fuel designs and materials, the fuel failure rate has not markedly decreased during the last decade, partly because of higher burn-up, longer cycle lengths, mixed cores… Safety aspects give rise to the reduction of contamination and the fuel cladding represents the first containment barrier. It is then necessary to maintain its integrity under all operating conditions. Flow-induced vibrations of fuel rods generating grid-to-rod fretting are the dominant fuel leaker mechanism worldwide. This paper presents a Computational Fluid Dynamics (CFD) simulation of the flow around a fuel rod. The swirls generated by the mixing vanes are reproduced, and the corresponding resulting fluid force excitations are extracted. The computed spectra are compared to envelop spectra obtained by tests on fuel assembly mock-ups in our experimental facilities.
Skip Nav Destination
ASME 2011 Pressure Vessels and Piping Conference
July 17–21, 2011
Baltimore, Maryland, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4454-0
PROCEEDINGS PAPER
LES CFD Simulation of Unsteady Fluid Forces in Tube Bundle Available to Purchase
Serge Delafontaine,
Serge Delafontaine
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Search for other works by this author on:
Guillaume Ricciardi,
Guillaume Ricciardi
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Search for other works by this author on:
Bruno Collard
Bruno Collard
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Search for other works by this author on:
Serge Delafontaine
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Guillaume Ricciardi
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Bruno Collard
French Atomic Energy and Alternative Energies Commission, Saint Paul lez Durance, France
Paper No:
PVP2011-57075, pp. 77-81; 5 pages
Published Online:
May 21, 2012
Citation
Delafontaine, S, Ricciardi, G, & Collard, B. "LES CFD Simulation of Unsteady Fluid Forces in Tube Bundle." Proceedings of the ASME 2011 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Baltimore, Maryland, USA. July 17–21, 2011. pp. 77-81. ASME. https://doi.org/10.1115/PVP2011-57075
Download citation file:
19
Views
Related Proceedings Papers
Related Articles
COBRA-TF Simulation of DNB Response During Reactivity-Initiated Accidents Using the NSRR Pulse Irradiation Experiments
ASME J of Nuclear Rad Sci (July,2016)
Validation Facility and Model Development for Nuclear Fuel Assembly Response to Seismic Loading
ASME J of Nuclear Rad Sci (October,2015)
About the Thermal Hydraulic Analysis Part of a Coupled Study on a Thorium-Fueled SCWR Concept
ASME J of Nuclear Rad Sci (July,2020)
Related Chapters
Lessons Learned: NRC Experience
Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards
Nuclear Fuel Materials and Basic Properties
Fundamentals of Nuclear Fuel
Insights and Results of the Shutdown PSA for a German SWR 69 Type Reactor (PSAM-0028)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)