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dc.contributor.advisorEdward M. Greitzer.en_US
dc.contributor.authorViguier, Henri Charlesen_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Mechanical Engineering.en_US
dc.date.accessioned2005-08-04T17:47:08Z
dc.date.available2005-08-04T17:47:08Z
dc.date.copyright1980en_US
dc.date.issued1981en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/15881
dc.descriptionThesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.en_US
dc.descriptionMICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.en_US
dc.descriptionIncludes bibliographical references.en_US
dc.description.abstractA theoretical study is presented of the fluid mechanics of the inlet vortex (or ground vortex) phenomenon. The vorticity field associated with the vortex is investigated using a secondary flow approach. In this approach the flow is assumed to be composed of an irrotational primary flow and a weak shear flow, with the vortex filaments associated with the latter being regarded as convected by the former. The potential flow field induced by the inlet-ground plane combination is computed using the panel method developed by · Hess, Mack and Stockman. Using the analysis, material lines (which coincide with vortex lines) can be tracked between a far upstream location, where this vorticity can be taken as known, and the engine face location. The deformation of the material lines thus shows directly the generation and amplification of the streamwise component of vorticity, which is responsible for the velocity distortion at the compressor face. Two representative flow configurations are considered, one with headwind only and one with the flow at forty-five degrees to the inlet axis of symmetry. Although the results so far yield only qualitative information, they appear to provide some insight into one mechanism associated with the inlet vortex formation.en_US
dc.description.statementofresponsibilityby Henri Charles Viguier.en_US
dc.format.extent153 leavesen_US
dc.format.extent8018462 bytes
dc.format.extent8018220 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582
dc.subjectMechanical Engineering.en_US
dc.subject.lcshVortex-motionen_US
dc.subject.lcshGas-turbines Dynamicsen_US
dc.subject.lcshCompressorsen_US
dc.subject.lcshFluid mechanicsen_US
dc.titleA secondary flow approach to the inlet vortex flow fielden_US
dc.typeThesisen_US
dc.description.degreeM.S.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Dept. of Mechanical Engineering.en_US
dc.identifier.oclc08206409en_US


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