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dc.contributor.authorAl-Maaitah, Ayman Adnanen
dc.date.accessioned2014-03-14T21:49:47Zen
dc.date.available2014-03-14T21:49:47Zen
dc.date.issued1986-11-05en
dc.identifier.otheretd-11152013-040410en
dc.identifier.urihttp://hdl.handle.net/10919/45741en
dc.description.abstractThe instability of flows around hump and dip imperfections is investigated. The mean flow is calculated using interacting boundary layers, thereby accounting for viscous/inviscid interaction and separation bubbles. Then, the two-dimensional linear instability of this flow is analyzed, and the amplification factors are computed. Results are obtained for several height/width ratios and locations. The theoretical results have been used to correlate the experimental results of Greening and Walker. The observed transition locations are found to correspond to amplification factors varying between 7.4 and 10, consistent with previous results for flat plates. The method accounts for Tollmien-Schlichting waves, the shear layer instability, and their interaction. Separation is found to increase significantly the amplification factor.en
dc.format.extentxiv, 72 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.publisherVirginia Techen
dc.relation.isformatofOCLC# 16369696en
dc.relation.haspartLD5655.V855_1986.A45.pdfen
dc.subject.lccLD5655.V855 1986.A45en
dc.subject.lcshAerofoilsen
dc.subject.lcshSurface roughness -- Experimentsen
dc.subject.lcshSurfaces (Technology) -- Analysisen
dc.titleEffect of roughness element on the stability of boundary layersen
dc.typeThesisen
dc.contributor.departmentEngineering Science and Mechanicsen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineEngineering Science and Mechanicsen
dc.type.dcmitypeTexten
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11152013-040410/en
dc.date.sdate2013-11-15en
dc.date.rdate2013-11-15en
dc.date.adate2013-11-15en


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