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dc.contributor.advisorPucci, Paul F.
dc.contributor.authorEllin, Charles Robert
dc.dateJune 1977
dc.date.accessioned2012-11-16T19:16:09Z
dc.date.available2012-11-16T19:16:09Z
dc.date.issued1977-06
dc.identifier.urihttp://hdl.handle.net/10945/18208
dc.description.abstractCold flow model tests of multiple nozzle exhaust gas eductor systems with constant area mixing stacks were conducted to evaluate effects of geometric configuration on eductor performance. A one-dimensional analysis of a simple eductor system based on conservation of momentum for an incompressible gas was used in determining the non-dimensional parameters governing the flow phenomenon. Eductor performance is defined in terms of these parameters. An experimental correlation of these parameters is developed and used to determine the effects of variations in eductor geometry on eductor performance. Three basic eductor configurations were tested with mixing stack L/D between 2.3 and 2.8, mixing stack to nozzle area ratios ranging from 2.28 to 3.03, primary nozzle exit Mach numbers from 0.070 to 0.265 and primary nozzle combinations of three, four and five nozzles each. Within the range of variables considered, the mixing stack area to primary nozzle area ratio and the resistance to secondary air flow into the eductor had the most influence on eductor performance.en_US
dc.description.sponsorshipNaval Ship Research and Development Laboratory, N00167-76 WR 6-0454en_US
dc.description.urihttp://archive.org/details/modeltestsofmult1094518208
dc.language.isoen_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. Copyright protection is not available for this work in the United States.en_US
dc.subject.lcshMechanical engineeringen_US
dc.titleModel tests of multiple nozzle exhaust gas educator systems for gas turbine powered ships.en_US
dc.typeThesisen_US
dc.contributor.secondreaderKelleher, Matthew
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.subject.authormultiple nozzle eductoren_US
dc.subject.authorexhaust gas coolingen_US
dc.subject.authorexhaust eductor/ejectoren_US
dc.subject.authorair/gas eductoren_US
dc.subject.authorair/gas ejectoren_US
dc.description.funderNaval Ship Research and Development Laboratory, N00167-76 WR 6-0454en_US
dc.description.serviceLieutenant, United States Navyen_US
dc.identifier.npsreportNPS-69Pc77061
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.nameDegree of Mechanical Engineeren_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.levelProfessional Degreeen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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