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Experimental investigation and theoretical considerations of boundary layer transition of the hemisphere at low wall-to-stagnation temperature ratios

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dc.contributor.authorMayo, Edward E.en
dc.contributor.departmentAeronautical Engineeringen
dc.date.accessioned2021-07-22T18:16:08Zen
dc.date.available2021-07-22T18:16:08Zen
dc.date.issued1959en
dc.description.abstractThe present investigation was undertaken to determine experimentally whether or not instability of the laminar boundary layer on blunt convex bodies exists when the wall-to-stagnation temperature is lowered. It was found that instability existed and theoretical considerations are given to the transition being associated with the formation of ice on the model surface and with an increase in roughness Reynolds numbers due to thinning of the laminar boundary layer at low wall-to-stagnation temperature ratios. The experimental tests were conducted on two-inch diameter spheres at M = 4.95 and free-stream Reynolds numbers per foot of approximately 72. 5 x 10⁶ or 12.1 x 10⁶ based on the model base diameter. Data were obtained tor both the hot wall and cold wall case. The stagnation temperature was approximately 400° F. Initial model wall temperatures were 97°F, for the hot wall test and -320° F for the cold wall tests.en
dc.description.degreeM.S.en
dc.format.extent57 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/104275en
dc.language.isoenen
dc.publisherVirginia Polytechnic Instituteen
dc.relation.isformatofOCLC# 26596076en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1959.M396en
dc.subject.lcshBoundary layeren
dc.titleExperimental investigation and theoretical considerations of boundary layer transition of the hemisphere at low wall-to-stagnation temperature ratiosen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAeronautical Engineeringen
thesis.degree.grantorVirginia Polytechnic Instituteen
thesis.degree.levelmastersen
thesis.degree.nameM.S.en

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