Partitioned simulation of long and slender cylinders corresponding to nuclear fuel rods vibrating in axial flow

Jeroen De Ridder, Joris Degroote, Katrien Van Tichelen, Jan Vierendeels, Steven Keijers

Research outputpeer-review

Abstract

Currently generation IV nuclear reactors are being developed. One of the possible designs is the lead-cooled fast reactor, of which MYRRHA is a prototype. The aim of this study is to gain insight in the eigenmode characteristics of fuel rods immersed in axial flow. Current design practice is to use semi-empirical models to provide vibration characteristics. This study on the other hand takes the entire 3-dimensional flow field into account to determine the eigenmode characteristics. Therefore partitioned simulations are performed using the IQN-ILS algorithm on one empty fuel rod. Initially the rod is deformed according to an in-vacuo eigenmode which is then released in an unsteady FSI-simulation. Simulations are performed with both symmetric and periodic boundary conditions to analyze the effect of boundary conditions in the flow field .
Original languageEnglish
Title of host publicationEuropean Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)
Place of PublicationVienna, Austria
StatePublished - Sep 2012
EventECCOMAS 2012: 6th European Congress on Computational Methods in Applied Sciences and Engineering - Vienna
Duration: 10 Sep 201214 Sep 2012

Publication series

NameISBN: 978-3-9503537-0-9

Conference

ConferenceECCOMAS 2012: 6th European Congress on Computational Methods in Applied Sciences and Engineering
Country/TerritoryAustria
CityVienna
Period2012-09-102012-09-14

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