DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyeonil | ko |
dc.contributor.author | Lee, JeongIk | ko |
dc.contributor.author | No, Hee Cheon | ko |
dc.date.accessioned | 2013-03-12T02:07:16Z | - |
dc.date.available | 2013-03-12T02:07:16Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-04 | - |
dc.identifier.citation | NUCLEAR ENGINEERING AND DESIGN, v.240, no.4, pp.783 - 795 | - |
dc.identifier.issn | 0029-5493 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101050 | - |
dc.description.abstract | One of the key issues in a gas-cooled system with a passive heat removal measure is the correct prediction of thermal hydraulic behavior in the deteriorated turbulent heat transfer (DTHT) regime. Here, a simple one-dimensional analysis of a gas-cooled reactor system was performed to show its strong potential for operation in the DTHT regime. A numerical calculation using computational fluid dynamics (CFD) was done to verify the capability of the Launder-Sharma (LS) turbulence model to predict wall and bulk temperatures while a gas system is operating in the DTHT regime. The results by the LS model are compared to those by the high Reynolds turbulent model, a newly proposed correlation, and recently obtained experimental data. The comparison shows that the LS turbulence model can provide a reasonable prediction in the buoyancy-induced DTHT regime. Additionally, it was found that the IS model predicted strong laminarization near the entrance which deteriorated turbulent heat transfer further compared to the measurements, but re-turbulization took place much earlier than in the experiment which recovered the heat transfer to a normal turbulent heat transfer. (C) 2009 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | MIXED CONVECTION | - |
dc.subject | 2-EQUATION MODEL | - |
dc.subject | VERTICAL TUBES | - |
dc.subject | CIRCULAR TUBE | - |
dc.subject | TRANSFER DTHT | - |
dc.subject | AIR-FLOWS | - |
dc.subject | UP-FLOW | - |
dc.subject | PIPE | - |
dc.subject | TEMPERATURE | - |
dc.subject | VELOCITY | - |
dc.title | Thermal hydraulic behavior in the deteriorated turbulent heat transfer regime for a gas-cooled reactor | - |
dc.type | Article | - |
dc.identifier.wosid | 000275933400015 | - |
dc.identifier.scopusid | 2-s2.0-76849113255 | - |
dc.type.rims | ART | - |
dc.citation.volume | 240 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 783 | - |
dc.citation.endingpage | 795 | - |
dc.citation.publicationname | NUCLEAR ENGINEERING AND DESIGN | - |
dc.identifier.doi | 10.1016/j.nucengdes.2009.11.004 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Lee, JeongIk | - |
dc.contributor.localauthor | No, Hee Cheon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | MIXED CONVECTION | - |
dc.subject.keywordPlus | 2-EQUATION MODEL | - |
dc.subject.keywordPlus | VERTICAL TUBES | - |
dc.subject.keywordPlus | CIRCULAR TUBE | - |
dc.subject.keywordPlus | TRANSFER DTHT | - |
dc.subject.keywordPlus | AIR-FLOWS | - |
dc.subject.keywordPlus | UP-FLOW | - |
dc.subject.keywordPlus | PIPE | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | VELOCITY | - |
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