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An analytical study of mechanisms that govern debris packing in a LWR severe accident
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0002-0683-9136
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
2007 (English)In: Proceedings - 12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-12, 2007Conference paper, Published paper (Refereed)
Abstract [en]

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
2007.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-53797Scopus ID: 2-s2.0-44349098203ISBN: 0-89448-058-8 (print)OAI: oai:DiVA.org:kth-53797DiVA: diva2:470982
Conference
12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH-12; Pittsburgh, PA; 30 September 2007 through 4 October 2007
Note
Paper 247. QC 20120301Available from: 2011-12-30 Created: 2011-12-30 Last updated: 2012-03-01Bibliographically approved

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Kudinov, Pavel

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