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 Q07: Microscale Flows: General
12:50 PM–2:47 PM,
Tuesday, November 20, 2018
Georgia World Congress Center Room: B212
Chair: Ali Mani, Stanford University
Abstract ID: BAPS.2018.DFD.Q07.1
Abstract: Q07.00001 : Optimization of electroconvection over patterned membranes*
12:50 PM–1:03 PM
Electroconvection is a hydrodynamic instability that arises due to the bulk motion of ions driven by an applied electric field across an electrolyte. In applications such as electrodialysis desalination, this phenomenon leads to improved performance by promoting transport of ions towards an ion-selective membrane, where they are removed from the fluid. One method of controlling electroconvection is by geometrically manipulating the membrane surface via geometric patterning. We consider a specific type of patterning in which sections of the membrane are blocked, which has been shown to enhance transport rate (Davidson et al., Scientific Reports, 6, 22505, 2016). In this study, we utilize 2D direct numerical simulations of electroconvection, and present strategies for pattern optimization in order to maximize ion transport due to the pattern-induced flow.
*Supported by a Stanford Graduate Fellowship and the National Science Foundation.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.Q07.1
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