Deposition of Newtonian Particles Entrained in a Turbulent Axisymmetric Free Jet

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dc.contributor.authorRobertson, Zachary Burton Smithen
dc.contributor.committeechairBall, Kenneth S.en
dc.contributor.committeememberPierson, Mark A.en
dc.contributor.committeememberMasterson, Robert E.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:34:12Zen
dc.date.adate2012-05-17en
dc.date.available2014-03-14T20:34:12Zen
dc.date.issued2012-04-23en
dc.date.rdate2012-05-17en
dc.date.sdate2012-04-24en
dc.description.abstractIn the past 10 years there has been a significant amount of research into two-phase particle transport. The terrorist events of September 11, 2001 sparked a series of studies analyzing particle entrainment and deposition in turbulent airflows. One area of research needing further attention has been the study of particles entrained in axisymmetric air jets. An experimental rig was designed and built to study entrainment properties and deposition of Newtonian particles, after injection into a turbulent axisymmetric free air jet. Newtonian spherical particles, ranging from 1mm to 6mm in diameter, were injected into a turbulent airstream and blown through a nozzle into a large, open space. As the particles fell out of the jet stream, their linear distances, from nozzle to initial-ground-contact, were recorded and analyzed. The experiments conducted indicated particle size and density to be significant factors when considering Newtonian particle entrainment. Additionally, particle deposition distribution revealed a consistent positive skewness, as opposed to an expected Gaussian form. The data presented in this paper provide a starting point for understanding entrainment of Newtonian spherical particles in jets. The simple experimental rig geometry and results also provide an opportunity for computational fluid dynamics models to be validated, answering a call from the 2006 Annual Review of Fluid Mechanics.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-04242012-174933en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04242012-174933/en
dc.identifier.urihttp://hdl.handle.net/10919/31884en
dc.publisherVirginia Techen
dc.relation.haspartRobertson_ZB_D_2012.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTurbulenceen
dc.subjectentrainmenten
dc.subjectaxisymmetric jeten
dc.subjectdepositionen
dc.subjectparticleen
dc.titleDeposition of Newtonian Particles Entrained in a Turbulent Axisymmetric Free Jeten
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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