DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hyun, Jae Min | ko |
dc.contributor.author | Sung, Hyung Jin | ko |
dc.contributor.author | Hwang, KS | ko |
dc.date.accessioned | 2009-11-30T01:38:38Z | - |
dc.date.available | 2009-11-30T01:38:38Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-02 | - |
dc.identifier.citation | EXPERIMENTS IN FLUIDS, v.30, no.2, pp.202 - 213 | - |
dc.identifier.issn | 0723-4864 | - |
dc.identifier.uri | http://hdl.handle.net/10203/13631 | - |
dc.description.abstract | Laboratory measurements are made of flow over a blunt flat plate of finite thickness, which is placed in a pulsating free stream, U = U-0(1 + A(0) cos 2 pif(p)t). Low turbulence-intensity wind tunnel experiments are conducted in the ranges of St(p) less than or equal to 1.23 and A(0) < 0.118 at Re-H = 560. Pulsation is generated by means of a woofer speaker. Variations of the time-mean reattachment length x(R) as functions of Stp and A, are scrutinized by using the forward-time fraction and surface pressure distributions (C-p). The shedding frequency of large-scale vortices due to pulsation is measured. Flow visualizations depict the behavior of large-scale vortices. The results for non-pulsating flows (A(0) = 0) are consistent with the published data.. In the lower range of A(x), as St(p) increases, x(R) attains a minimum value at a particular pulsation frequency. Far large A(0), the results show complicated behaviors of x(R) For St(p) <greater than or equal to> 0.80, changes in x(R) are insignificant as A(0) increases. The shedding frequency of large-scale vortices is locked-in to the pulsation frequency. A vortex-pairing process takes place between two neighboring large-scale vortices in the separated shear layer. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | SPRINGER-VERLAG | - |
dc.subject | TURBULENT SEPARATION BUBBLE | - |
dc.subject | MASS-TRANSFER | - |
dc.subject | REATTACHMENT | - |
dc.title | An experimental study of large-scale vortices a blunt-faced flat plate in pulsating flow | - |
dc.type | Article | - |
dc.identifier.wosid | 000166914600009 | - |
dc.identifier.scopusid | 2-s2.0-0035243298 | - |
dc.type.rims | ART | - |
dc.citation.volume | 30 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 202 | - |
dc.citation.endingpage | 213 | - |
dc.citation.publicationname | EXPERIMENTS IN FLUIDS | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Hyun, Jae Min | - |
dc.contributor.localauthor | Sung, Hyung Jin | - |
dc.contributor.nonIdAuthor | Hwang, KS | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TURBULENT SEPARATION BUBBLE | - |
dc.subject.keywordPlus | MASS-TRANSFER | - |
dc.subject.keywordPlus | REATTACHMENT | - |
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