Bulletin of the American Physical Society
74th Annual Meeting of the APS Division of Fluid Dynamics
Volume 66, Number 17
Sunday–Tuesday, November 21–23, 2021; Phoenix Convention Center, Phoenix, Arizona
Session P08: Flow Instability: Theory and Nonlinear Dynamics
4:05 PM–6:41 PM,
Monday, November 22, 2021
Room: North 123
Chair: Yiyang Sun, Syracuse University
Abstract: P08.00007 : Enhancement of filtration by hydrodynamic instabilities in a Taylor-Couette cell with semi-permeable cylinders.*
5:23 PM–5:36 PM
Nils G Tilton
(Colorado School of Mines)
Rouae BEN DHIA
By mean of the osmotic pressure, the concentration boundary layer promotes the instabilities. In return, the instabilities increase the mean radial flow across the cell. The impact of the different physical parameters on these two mechanisms is then addressed.
These results obtained by analytical stability analyses are in agreement with dedicated Direct Numerical Simulations. They quantitatively assess the roll of hydrodynamic instabilities to improve the performances of filtration devices.
*This work was supported by the Thomas Jefferson Fund of the Ambassy of France in the United States and the FACE Foundation.
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