DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, S.C. | - |
dc.contributor.author | Kim, M.H. | - |
dc.contributor.author | Yu, D.I. | - |
dc.contributor.author | Ahn, H.S. | - |
dc.date.accessioned | 2022-06-30T06:20:59Z | - |
dc.date.available | 2022-06-30T06:20:59Z | - |
dc.date.created | 2021-02-03 | - |
dc.date.issued | 2021-04 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/113303 | - |
dc.description.abstract | In this study, the effects of wall temperature, micro-pillar array size, and micro-pillar height on the outcomes of the impingement of a single water drop impingement onto a heated surface with micro-pillar arrays were investigated. The micro-pillar arrays were designed with four different diameters and spacing (D, S: 5, 10, 15, and 20 mu m) and three different heights (H: 20, 30, and 40 mu m). For each type of surface, we classified the outcomes of drop impingement regimes into contact boiling, explosive lift-off, transition rebound, and Leidenfrost rebound by high-speed visualization. Micro-pillar arrays can result in the explosive lift-offbehavior and increase the Leidenfrost temperature. The explosive lift-off occurs when the liquid-vapor interface is pushed up by vapor pressure. Based on the force balance analysis, the behaviors of the liquid-vapor interface were analyzed based on the competing wetting (capillary pressure) and non-wetting (vapor pressure) pressures to understand the explosive lift-off triggering mechanism. (C) 2020 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.title | Geometrical parametric study of drop impingement onto heated surface with micro-pillar arrays | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2020.120891 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.168 | - |
dc.identifier.wosid | 000640991800037 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.volume | 168 | - |
dc.contributor.affiliatedAuthor | Kim, M.H. | - |
dc.identifier.scopusid | 2-s2.0-85099257639 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Drop impingement | - |
dc.subject.keywordAuthor | Leidenfrost | - |
dc.subject.keywordAuthor | Explosive lift-off | - |
dc.subject.keywordAuthor | Micro pillar array | - |
dc.subject.keywordAuthor | Outcomes of drop impact | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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