DC Field | Value | Language |
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dc.contributor.author | Kim, H | - |
dc.contributor.author | Ahn, HS | - |
dc.contributor.author | Kwak, HJ | - |
dc.contributor.author | Kim, MH | - |
dc.contributor.author | Kim, DE | - |
dc.date.accessioned | 2017-07-19T13:30:51Z | - |
dc.date.available | 2017-07-19T13:30:51Z | - |
dc.date.created | 2017-02-10 | - |
dc.date.issued | 2016-12-12 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37131 | - |
dc.description.abstract | A boiling crisis, or critical heat flux (CHF), is a condition that determines the upper bound on removable thermal energy at a boiling surface. In such situations, the liquid cannot wet the surface because a vapor film completely covers it. CHF is enhanced on micro-structured surfaces when under boiling conditions. CHF values were measured for surfaces with rectangular microchannel geometries of various channel widths, (10-30 mu m) and generally increased in value as channel widths decreased. However, the CHF value for the 5-mu m channel-width surface was found to be lower than the wider channel-width surfaces. This observation contradicts models based on vapor recoil and classical instability mechanisms. Hence, we present a fluid-dynamics model that considers capillary pumping and viscous friction. With a focus on the spatial distribution of the liquid penetration region and the local dry spot under a large vapor bubble, this model can accurately predict the CHF variation associated with different channel widths. Published by AIP Publishing. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.relation.isPartOf | Applied Physics Letters | - |
dc.title | Boiling crisis controlled by capillary pumping and viscous friction: Liquid penetration length and dry spot diameter | - |
dc.type | Article | - |
dc.identifier.doi | 10.1063/1.4971986 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Applied Physics Letters, v.109, no.24, pp.243901 | - |
dc.identifier.wosid | 000391457500044 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.number | 24 | - |
dc.citation.startPage | 243901 | - |
dc.citation.title | Applied Physics Letters | - |
dc.citation.volume | 109 | - |
dc.contributor.affiliatedAuthor | Kim, MH | - |
dc.identifier.scopusid | 2-s2.0-85007012034 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 4 | - |
dc.description.scptc | 3 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CRITICAL HEAT-FLUX | - |
dc.subject.keywordPlus | LINE TENSION | - |
dc.subject.keywordPlus | POOL | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | SHAPE | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
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