Heat transfer augmentation using a rib-dimple compound cooling technique
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Eun Yeong | - |
dc.contributor.author | Choi, Yong Duck | - |
dc.contributor.author | Lee, Won Suk | - |
dc.contributor.author | Chung, Jin Teak | - |
dc.contributor.author | Kwak, Jae Su | - |
dc.date.accessioned | 2021-09-06T04:04:04Z | - |
dc.date.available | 2021-09-06T04:04:04Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2013-03 | - |
dc.identifier.issn | 1359-4311 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/103897 | - |
dc.description.abstract | Detailed distributions of the heat transfer coefficients in the channel with both angled ribs and dimples were measured using the transient liquid crystal technique. For comparison, heat transfer coefficients for dimpled and angle ribbed channels were also presented. The channel aspect ratio was designed to be 2 and 4 in order to simulate the internal coolant passage of a gas turbine blade. The rib pitch, rib angle, dimple diameter, and dimple center-to-center distance were 6 mm, 60 degrees, 6 mm, and 7.2 mm, respectively. The Reynolds number based on the channel hydraulic diameter ranged between 30,000 and 50,000. Results show that the distribution of heat transfer coefficient was asymmetric due to the secondary flow induced by the angled ribs. Also, dimples fabricated between the ribs increased the heat coefficient with an acceptable increase in pressure drop. Thus, the compound cooling technique with angled rib sand dimples should be considered as a candidate for improving the heat transfer performance of a gas turbine blade internal cooling technique. (C) 2012 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | CHANNEL | - |
dc.title | Heat transfer augmentation using a rib-dimple compound cooling technique | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chung, Jin Teak | - |
dc.identifier.doi | 10.1016/j.applthermaleng.2012.09.041 | - |
dc.identifier.scopusid | 2-s2.0-84867748695 | - |
dc.identifier.wosid | 000316036300046 | - |
dc.identifier.bibliographicCitation | APPLIED THERMAL ENGINEERING, v.51, no.1-2, pp.435 - 441 | - |
dc.relation.isPartOf | APPLIED THERMAL ENGINEERING | - |
dc.citation.title | APPLIED THERMAL ENGINEERING | - |
dc.citation.volume | 51 | - |
dc.citation.number | 1-2 | - |
dc.citation.startPage | 435 | - |
dc.citation.endPage | 441 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.subject.keywordPlus | CHANNEL | - |
dc.subject.keywordAuthor | Gas turbine blade cooling | - |
dc.subject.keywordAuthor | Compound cooling | - |
dc.subject.keywordAuthor | Dimple cooling | - |
dc.subject.keywordAuthor | Rib turbulated cooling | - |
dc.subject.keywordAuthor | Internal cooling | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.