Subpixel Resolution Schemes for Multiphase Flows

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dc.contributor.authorBrady, Michael Richarden
dc.contributor.committeechairVlachos, Pavlos P.en
dc.contributor.committeememberTelionis, Demetri P.en
dc.contributor.committeememberYoon, Roe-Hoanen
dc.contributor.departmentEngineering Science and Mechanicsen
dc.date.accessioned2014-03-14T20:49:28Zen
dc.date.adate2007-01-12en
dc.date.available2014-03-14T20:49:28Zen
dc.date.issued2006-10-20en
dc.date.rdate2007-01-12en
dc.date.sdate2006-12-13en
dc.description.abstractThis effort explores novel sub-resolution particle center estimation algorithms for Digital Particle Tracking Velocimetry (DPIV). The errors of these new methods were classified through Monte-Carlo simulations. These schemes provide direct measurements of the apparent particle image diameter and the subpixel position. The new methods significantly reduce the bias error due to pixel discretization, thus reducing the total error in the position and sizing measurement compared to the classic three point and least squares Gaussian estimators. In addition, the accuracy of the least-squares fits were essentially independent of the true particle diameter and significantly reduced the particle position error compared with current estimation schemes. The results of the Monte Carlo simulations were validated in a high pressure spray atomization experiment.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-12132006-032833en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12132006-032833/en
dc.identifier.urihttp://hdl.handle.net/10919/36104en
dc.publisherVirginia Techen
dc.relation.haspartbrady-MSthesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSubpixel Resolutionen
dc.subjectMultiphase flowsen
dc.subjectSpray Dynamicsen
dc.subjectParticle Tracking Velocimetryen
dc.subjectParticle Image Velocimetryen
dc.titleSubpixel Resolution Schemes for Multiphase Flowsen
dc.typeThesisen
thesis.degree.disciplineEngineering Science and Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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