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dc.contributor.advisorShreeve, Raymond P.
dc.contributor.authorArmstrong, Jeffrey H.
dc.dateJune 1990
dc.descriptionApproved for public release; distribution is unlimited.en_US
dc.description.abstractLoss measurements were conducted using a five-hole conical pneumatic probe in a subsonic wind tunnel containing a modeled cascade of controlled diffusion (CD) stator blades. Following reference measurements at high incidence one blade was modified (slotted at the leading edge) in an attempt to (passively) reduce the size of the leading edge separation bubble and thereby improve performance. Prior to the surveys, the acquisition and reduction software was modified to provide loss calculations using both mass-averaged and fully-mixed-out conditions for the upstream and downstream flows. Results showed that the mass-averaged method provided the more consistent results, and this was explained. The slotted leading edge blade was found to produce less loss than the reference blade, and it was concluded that the control concept should be explored in more detail.en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleNear-Stall Loss Measurements in a CD Compressor Cascade with Exploratory Leading Edge Flow Controlen_US
dc.contributor.secondreaderHobson, Garth V.
dc.contributor.departmentDepartment of Aeronautics and Astronautics
dc.subject.authorCascade Wind Tunnel Loss Measurementen_US
dc.subject.authorControlled DIffusion Bladingen_US
dc.subject.authorSlotting Leading Edgeen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameM.S. in Engineering Scienceen_US
etd.thesisdegree.disciplineEngineering Scienceen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US

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