Aerodynamic performance of winglets covering the tip gap inlet in a turbine cascade
DC Field | Value | Language |
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dc.contributor.author | Lee, Sang Woo | - |
dc.contributor.author | Kim, Seon Ung | - |
dc.contributor.author | Kim, Kyoung Hoon | - |
dc.date.accessioned | 2023-12-11T09:31:16Z | - |
dc.date.available | 2023-12-11T09:31:16Z | - |
dc.date.issued | 2012-04 | - |
dc.identifier.issn | 0142-727X | - |
dc.identifier.issn | 1879-2278 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/21973 | - |
dc.description.abstract | The aerodynamic performance of two different kinds of winglets covering the tip gap inlet of a plane tip, a "pressure-side" (PS) winglet and a "leading-edge and pressure-side" (LEPS) winglet, has been investigated in a turbine cascade. For a tip gap height-to-chord ratio of h/c = 2.0%, their width-to-pitch ratio is changed to be w/p = 2.64, 5.28, and 10.55%. The PS winglet reduces aerodynamic loss in the tip leakage vortex region as well as in an area downstream of the winglet-pressure surface corner, whereas it increases aerodynamic loss in the central area of the passage vortex region. The additional leading-edge winglet portion of the LEPS winglet reduces aerodynamic loss considerably on the casing wall side of the passage vortex region but delivers a noticeable aerodynamic loss increase on its mid-span side. These local trends are deepened with increasing w/p. However, the mass-averaged aerodynamic loss reductions by installing the PS and LEPS winglets in comparison with the baseline no winglet data are only marginal even for w/p = 10.55% and found much smaller than that by employing a cavity squealer tip. (C) 2011 Elsevier Inc. All rights reserved. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Aerodynamic performance of winglets covering the tip gap inlet in a turbine cascade | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1016/j.ijheatfluidflow.2011.11.008 | - |
dc.identifier.wosid | 000304219800004 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v.34, pp 36 - 46 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.citation.volume | 34 | - |
dc.citation.startPage | 36 | - |
dc.citation.endPage | 46 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.subject.keywordPlus | 1ST-STAGE BLADE TIP | - |
dc.subject.keywordPlus | HEAT-TRANSFER | - |
dc.subject.keywordPlus | SQUEALER TIP | - |
dc.subject.keywordPlus | LEAKAGE FLOW | - |
dc.subject.keywordPlus | GEOMETRY | - |
dc.subject.keywordPlus | CLEARANCE | - |
dc.subject.keywordPlus | HEIGHT | - |
dc.subject.keywordAuthor | Turbine cascade | - |
dc.subject.keywordAuthor | Plane tip | - |
dc.subject.keywordAuthor | PS winglet | - |
dc.subject.keywordAuthor | LEPS winglet | - |
dc.subject.keywordAuthor | Winglet width | - |
dc.subject.keywordAuthor | Aerodynamic loss | - |
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