Investigation of microparticle behavior in Newtonian, viscoelastic, and shear-thickening flows in straight microchannels

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dc.contributor.advisorRezai, Pouya
dc.contributor.advisorEilaghi, Armin
dc.contributor.authorCharjouei Moghadam, Mohammad
dc.date.accessioned2022-03-03T14:08:12Z
dc.date.available2022-03-03T14:08:12Z
dc.date.copyright2021-12
dc.date.issued2022-03-03
dc.date.updated2022-03-03T14:08:12Z
dc.degree.disciplineMechanical Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractSorting and separation of small substances such as cells, microorganisms, and micro- and nano-particles from a heterogeneous mixture is a common sample preparation step in many areas of biology, biotechnology, and medicine. Portability and inexpensive design of microfluidic-based sorting systems have benefited many of these biomedical applications. Accordingly, we have investigated microparticle hydrodynamics in fluids with various rheological behaviors (i.e., Newtonian, shear-thinning viscoelastic and shear-thickening non-Newtonian) flowing in straight microchannels. Numerical models were developed to simulate particles trajectories in Newtonian water and shear-thinning polyethylene oxide (PEO) solutions. The validated models were then used to perform numerical parametric studies and non-dimensional analysis on the Newtonian inertia-magnetic and shear-thinning elasto-inertal focusing regimes. Finally, the straight microfluidic device that was tested for Newtonian water and shear-thinning viscoelastic PEO solution, were adopted to experimentally study microparticle behavior in SiO2/Water shear-thickening nanofluid.
dc.identifier.urihttp://hdl.handle.net/10315/39136
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectBiomedical engineering
dc.subject.keywordsMicrofluidics
dc.subject.keywordsNon-Newtonian
dc.subject.keywordsViscoelastic
dc.subject.keywordsNumerical modeling
dc.subject.keywordsShear-thickening
dc.subject.keywordsMicroparticles
dc.subject.keywordsMicrochannel
dc.subject.keywordsShear-thinning
dc.subject.keywordsParticle sorting
dc.titleInvestigation of microparticle behavior in Newtonian, viscoelastic, and shear-thickening flows in straight microchannels
dc.typeElectronic Thesis or Dissertation

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