Identification and Evaluation of Loss and Deviation Models for use in Transonic Compressor Stage Performance Prediction

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dc.contributor.authorCahill, Joseph E.en
dc.contributor.committeechairO'Brien, Walter F. Jr.en
dc.contributor.committeememberDancey, Clinton L.en
dc.contributor.committeememberMarshall-Baker, Annaen
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:52:33Zen
dc.date.adate1997-10-30en
dc.date.available2014-03-14T20:52:33Zen
dc.date.issued1997-09-22en
dc.date.rdate1997-10-30en
dc.date.sdate1997-09-22en
dc.description.abstractThe correlation of cascade experimental data is one method for obtaining compressor stage characteristics. These correlations specify pressure loss and flow turning caused by the blades. Current open literature correlations used in streamline curvature codes are inadequate for general application to high-speed transonic axial-flow compressors. The objective of this research was to investigate and evaluate the available correlations and ultimately discover sets of correlations which best fit the empirical data to be used in streamline curvature codes. Correlations were evaluated against experimental data from NASA Rotor 1-B and NASA Stage 35. It was found that no universal set of correlations was valid for minimum-loss point predictions. The Bloch shock loss model showed promising results in the stall regime for supersonic relative inlet Mach numbers. The Hearsey and Creveling off-minimum-loss deviation angle prediction performed consistently better than all other correlations tested.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-92797-183746en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-92797-183746/en
dc.identifier.urihttp://hdl.handle.net/10919/37041en
dc.publisherVirginia Techen
dc.relation.haspartEtd1.pdfen
dc.relation.haspartEtd2.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAxial Compressorsen
dc.subjectDeviationen
dc.subjectLossen
dc.subjectTransonicen
dc.titleIdentification and Evaluation of Loss and Deviation Models for use in Transonic Compressor Stage Performance Predictionen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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