An analytical study of mechanisms that govern debris packing in a LWR severe accident
2007 (English)In: Proceedings - 12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-12, 2007Conference paper (Refereed)
The paper presents physical models and numerical methods developed for simulation ofadebrisbed formation duringahypotheticalsevereaccidentinaLWR. The present approach combinesamicroscale solver based on Discrete Element Method (DEM),amultiscale treatment based on "gap-tooth" scheme anda"packinglayer" model to significantly improve computational efficiency that renders simulation of the reactor-scaledebrisbed formation possible. Numerical results are presented and discussed for test problems to characterize the performance of the proposed computational engine.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-53797ScopusID: 2-s2.0-44349098203ISBN: 0-89448-058-8OAI: oai:DiVA.org:kth-53797DiVA: diva2:470982
12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-12; Pittsburgh, PA; 30 September 2007 through 4 October 2007
Paper 247. QC 201203012011-12-302011-12-302012-03-01Bibliographically approved