https://scholars.lib.ntu.edu.tw/handle/123456789/62342
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lee, I-Chien | en |
dc.contributor.author | Chang, Yun-Chung | en |
dc.contributor.author | Ding, Pei-Pei | en |
dc.contributor.author | Chen, Ping-Hei | en |
dc.creator | Lee, I-Chien; Chang, Yun-Chung; Ding, Pei-Pei; Chen, Ping-Hei | - |
dc.date | 2005 | en |
dc.date.accessioned | 2008-10-28T06:24:22Z | - |
dc.date.accessioned | 2018-06-28T17:04:45Z | - |
dc.date.available | 2008-10-28T06:24:22Z | - |
dc.date.available | 2018-06-28T17:04:45Z | - |
dc.date.issued | 2005 | - |
dc.identifier.issn | 02533839 | - |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/85697 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-25144463667&doi=10.1080%2f02533839.2005.9671053&partnerID=40&md5=8768f1d698da5d42ef4d3d9c96700d5b | - |
dc.description.abstract | Experimental results of film cooling effectiveness over a concave surface with two staggered rows are presented by employing transient liquid crystal thermography. Four different discrete hole configurations are used for the injection of jet flow, including a straight circular hole configuration with a spanwise injection angle (β) of 0° and three forward-expanded hole configurations with β = 0°, 45° and 90° respectively. In all test models there are two staggered rows of discrete holes with streamwise injection angle (γ) of 35°. Blowing ratios (M) are 0.5, 1.0, and 2.0. The effects of blowing ratio, hole expanded angle, and injection angle orientation on film cooling performance are investigated. The jet flow with M = 0.5 is fairly uniform along the wall surface. The lift-off phenomenon can be found in the jet flow with β = 0° for both cases of simple and compound angles at M = 1.0 and also exists among all test cases at M = 2.0 except for β = 90°. The lift-off effect results in a decrease in both η and h /h0. At β = 0°, the jet flow with a forward-expanded hole gives higher η and lower h /h0 than a simple angle hole. At a fixed blowing ratio, the jet flow with compound angle holes has lower q /q0 and thus provides better wall protection than that with simple angle holes. In the present study, the compound angle with β = 0° at M = 2.0 provides the best film-cooling protection over the concave surface among all the test configurations. © 2005, Taylor & Francis Group, LLC. | - |
dc.format | application/pdf | en |
dc.format.extent | 962950 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | en | en |
dc.language.iso | en_US | - |
dc.relation | Journal of the Chinese Institute of Engineers 28 (5): 827-836 | en |
dc.relation.ispartof | Journal of the Chinese Institute of Engineers | en_US |
dc.subject | Compound angle; Concave surface; Film cooling | - |
dc.subject.other | Blow molding; Flow of fluids; Jets; Liquid crystals; Thermography (temperature measurement); Thin films; Compound angle; Concave surface; Film cooling; Hole configuration; Cooling systems | - |
dc.title | Film Cooling over a Concave Surface through Two Staggered Rows of Compound Angle Holes | en |
dc.type | journal article | en |
dc.identifier.scopus | 2-s2.0-25144463667 | - |
dc.relation.pages | 827-836 | - |
dc.relation.journalvolume | 28 | - |
dc.relation.journalissue | 5 | - |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/85697/1/06.pdf | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.fulltext | with fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en_US | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Mechanical Engineering | - |
crisitem.author.orcid | 0000-0002-8073-9344 | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 機械工程學系 |
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