MIXING CHARACTERISTICS OF SINGLE-PLUME AND MULTI-PLUME HIGH PRESSURE INJECTION TESTS

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dc.contributor.advisorKiger, Kenneth Ten_US
dc.contributor.authorKnowles, Philipen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2007-06-22T05:40:20Z
dc.date.available2007-06-22T05:40:20Z
dc.date.issued2007-06-13
dc.description.abstractThe purpose of this thesis is to examine effects of multiple plumes in a Pressurized Water Reactor downcomer under scaled Pressurized Thermal Shock conditions, then assess the flow patterns and mixing compared to a single plume. Most computational and experimental studies have been performed using only single plumes; the findings of multiple plume experiments indicate that plume interaction significantly changes the flow pattern in the downcomer. A globally-induced recirculation region was created by the collective interaction of the multiple plumes in the UMD experiments, which does not occur for a single plume under similar conditions. From the evolving concentration field measurements and entrainment theory, it's argued that two merged plumes experience lower entrainment rates than a single plume. This implies the possibility of a higher thermal stress on the downcomer wall than would be inferred from single plume tests. Flow visualization was employed to examine the differences in plume behavior.en_US
dc.format.extent44256016 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/7029
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pquncontrolledPressurized Water Reactoren_US
dc.subject.pquncontrolledPressurized Thermal Shocken_US
dc.subject.pquncontrolledexperimenten_US
dc.subject.pquncontrolledLIFen_US
dc.subject.pquncontrolledplumeen_US
dc.titleMIXING CHARACTERISTICS OF SINGLE-PLUME AND MULTI-PLUME HIGH PRESSURE INJECTION TESTSen_US
dc.typeThesisen_US

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