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Jetting Flow of a Shear Banding Fluid



Paul NMN Salipante, Charles A. Little, Steven D Hudson


In this video we show the jetting behavior of a shear banding worm-like micelle solution in microfluidic flows. The jetting behavior is characterized by a self-contained portion of the channel where the flow velocity is greater than the surroundings. We demonstrate the jetting flow in large aspect ratio rectangular microfluidic channels and compare the cross-section flow profile to numerical simulations. Finally, the inward and outward flow from a glass capillary in a reservoir is compared. While steady flow is observed for outward flow, unsteady jetting behavior is observed for inward flow.
APS Division of Fluid Dynamics Gallery of Fluid Motion


Created November 20, 2016, Updated November 10, 2018