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Transportation and Settling Distribution of Microparticles in Low-Reynolds-Number Poiseuille Flow in Microchannel

Razaghi, R ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1080/01932691.2015.1052880
  3. Publisher: Taylor and Francis Inc
  4. Abstract:
  5. In this article, velocity field and settling distribution of microparticles in a dilute suspension in low-Reynolds-number Poiseuille flow in a microchannel is experimentally investigated using microscopic image analysis. An effective technique is applied to manipulate single-particle tracking in order to determine the controlling parameters on transportation and settling of microparticles in microchannels. The results show that the velocities of dispersed phase are affected by the hydrodynamic properties, and this velocity deviation can be significant when the hydrodynamic coupling between particles and channel walls is considerable. Increasing the Reynolds number would result in decrease in total number of particles settled on the bottom wall of channel
  6. Keywords:
  7. Microchannel ; Microparticles ; Particle tracking ; Stokes flow ; Fluid dynamics ; Hydrodynamics ; Reynolds equation ; Reynolds number ; Suspensions (fluids) ; Velocity ; Controlling parameters ; Hydrodynamic coupling ; Hydrodynamic properties ; Micro-particles ; Microscopic image analysis ; Particle tracking ; Single particle tracking ; Stokes flows ; Microchannels
  8. Source: Journal of Dispersion Science and Technology ; Volume 37, Issue 4 , 2016 , Pages 582-594 ; 01932691 (ISSN)
  9. URL: http://www.tandfonline.com/doi/abs/10.1080/01932691.2015.1052880