Effects of squealer rim height on heat/mass transfer on the floor of cavity squealer tip in a high turning turbine blade cascade
DC Field | Value | Language |
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dc.contributor.author | Kang, Dong Bum | - |
dc.contributor.author | Lee, Sang Woo | - |
dc.date.accessioned | 2023-12-11T09:31:18Z | - |
dc.date.available | 2023-12-11T09:31:18Z | - |
dc.date.issued | 2016-08 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.issn | 1879-2189 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22014 | - |
dc.description.abstract | The effects of h(st)/s (squealer rim height-to-span ratio) on heat/mass transfer rate on the floor of the cavity squealer tip have been investigated in a high turning turbine blade cascade by employing the naphthalene sublimation technique along with oil film flow visualizations. Tested squealer rim heights are h(st)/s = 0.00% (plane tip), 0.94%, 1.88%, 3.75%, and 5.63% for a tip gap height-to-span ratio of h/s = 1.02%. For comparison purpose, the tip gap height is changed from h/s = 0.34% to 1.70% for h(st)/s = 3.75%. Heat/mass transfer rate on the cavity floor upstream of the mid-chord is affected by the leading edge tip gap vortices as well as by the reattachment of the incoming tip leakage flow to the cavity floor for lower h(st)/s, as in the plane tip case, whereas it is influenced mainly by the impingement of the incoming tip leakage flow onto the cavity floor near the leading edge for higher h(st)/s. On the other hand, heat/mass transfer rate downstream of the mid-chord is determined by the downwash flow which is entrapped by the suction-side squealer rim. With increasing h(st)/s, average heat/mass transfer rate on the cavity floor decreases steeply at first and then decreases mildly in the same manner as over-tip leakage loss. Average heat/mass transfer rate on the cavity floor is more sensitive to the squealer rim height than to the tip gap height. (C) 2016 Elsevier Ltd. All rights reserved. | - |
dc.format.extent | 10 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Effects of squealer rim height on heat/mass transfer on the floor of cavity squealer tip in a high turning turbine blade cascade | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2016.03.121 | - |
dc.identifier.wosid | 000384779300028 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.99, pp 283 - 292 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | - |
dc.citation.volume | 99 | - |
dc.citation.startPage | 283 | - |
dc.citation.endPage | 292 | - |
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 | GENERATION GAS-TURBINE | - |
dc.subject.keywordPlus | FULL COVERAGE WINGLET | - |
dc.subject.keywordPlus | SPEED ANNULAR CASCADE | - |
dc.subject.keywordPlus | HEAT-TRANSFER | - |
dc.subject.keywordPlus | PLANE TIP | - |
dc.subject.keywordPlus | LEAKAGE FLOW | - |
dc.subject.keywordPlus | FLAT TIP | - |
dc.subject.keywordPlus | AERODYNAMIC PERFORMANCE | - |
dc.subject.keywordPlus | ROTATING BLADE | - |
dc.subject.keywordPlus | CLEARANCE | - |
dc.subject.keywordAuthor | Turbine blade | - |
dc.subject.keywordAuthor | Cavity squealer tip | - |
dc.subject.keywordAuthor | Squealer rim height | - |
dc.subject.keywordAuthor | Tip gap height | - |
dc.subject.keywordAuthor | Cavity floor | - |
dc.subject.keywordAuthor | Heat/mass transfer rate | - |
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