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dc.contributor.authorXu, Hanjiangen_US
dc.date.accessioned2005-07-28T20:36:12Z
dc.date.available2005-07-28T20:36:12Z
dc.date.issued2003-05-08en_US
dc.identifier.urihttp://hdl.handle.net/1853/7073
dc.description.abstractThe flow of wood fiber suspensions plays an important role during the pulp and paper manufacture process. Considerable research has been carried out in the past 50 years to characterize the fiber suspension flow behavior and to monitor the fiber suspension flow during paper manufacture. However, the above research has been hampered by the lack of techniques to directly characterize fiber suspension flow fields because fibers and fiber flocs tend to interfere with instruments inserted into the flow. The fundamental studies in this thesis concentrated on three parts: (1) examine the feasibility of measuring wood fiber suspension flow by Pulsed Ultrasonic Doppler Velocimetry (PUDV), (2) apply PUDV to characterize fiber suspension flow behavior in a rectangular channel, (3) apply PUDV to measure the forming jet velocity profile along the jet thickness direction (ZD). In the first part, it is demonstrated that PUDV is an accurate technique for the velocity profile measurement of fiber suspension flow. The measurement has high repeatability and sensitivity. Suitable parameters should be selected in order to obtain the optimum measuring results.en_US
dc.format.extent3043616 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectFibersen_US
dc.subjectSuspension
dc.subjectFluid flow
dc.subjectForming
dc.subjectJets
dc.subjectVelocity measurement
dc.titleMeasurement of fiber suspension flow and forming jet velocity profile by pulsed ultrasonic doppler velocimetry.en_US
dc.typeDissertationen_US
dc.description.degreePh.D.en_US
dc.contributor.departmentInstitute of Paper Science and Technologyen_US
dc.description.advisoren_US


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