[Seminar] From particle migration over porous structures to flow transitions and instability in non-colloidal suspensions
Prof. Parisa Mirbod / University of Illinois at Chicago
From particle migration over porous structures to flow transitions and instability in non-colloidal suspensions
Suspensions are very prominent both in nature and industry and ranges from inkjet-printing, micro-, bio-devices, and food processing to landslides, and sediments in rivers. This seminar will present the numerical methods that employs constitutive laws to predict the flow transitions and onset of the instabilities of semi-dilute and concentrated suspensions in geometries including Taylor-Couette flow for very low particle and bulk Reynolds numbers. It also covers the transition of suspensions with the existence of thermal convection. Different regimes of the transitions of suspension flows and their comparison with the pure Newtonian fluid in similar geometries will be discussed. At the end of the talk, the experimental analysis of the suspension flows over porous structures performed by Magnetic Resonance imaging (MRI) and PIV (Particle Image Velocimetry) techniques will be also introduced. The insights gathered from these analyses will lead to novel methods to control particles in the flow and near the wall in a wide range of industries and technologies related to the processing and transports of suspension flows.
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