Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session A24: Microscale Flows: Streaming and Assembly
8:00 AM–9:57 AM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B312
Chair: Anke Lindner, ESPCI Paris
Abstract ID: BAPS.2018.DFD.A24.1
Abstract: A24.00001 : Streaming-reinforced particle transport
8:00 AM–8:13 AM
Presenter:
Tejaswin Parthasarathy
(Univ of Illinois - Urbana)
Authors:
Tejaswin Parthasarathy
(Univ of Illinois - Urbana)
Fan Kiat Chan
(Univ of Illinois - Urbana)
Mattia Gazzola
(Univ of Illinois - Urbana)
Motivated by drug-delivery applications, we investigate the capability of an 'active' body (master) to manipulate a 'passive' object (slave) purely via contactless flow-mediated mechanisms. We extend prior works on active--passive cylinder pairs by superimposing periodic oscillations to the master's linear motion. In a viscous fluid, such oscillations produce an additional viscous streaming field, which is leveraged for enhancing the slave transport. We see that superimposing oscillations robustly improves transport across a range of Reynolds numbers. Comparison with results without oscillations highlights the flow mechanisms at work, which we capitalize on to design (master) geometries for augmented transport.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A24.1
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