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 KP1: Poster Session (3:20-4:05pm)
Monday, November 19, 2018
Georgia World Congress Center Room: Level 1, Exhibit Hall B2 by the GFM videos
Abstract ID: BAPS.2018.DFD.KP1.125
Abstract: KP1.00125 : Particle focusing and separation in xanthan gum solutions*
The passive manipulation of particles in viscoelastic fluids has received an increasing interest in the microfluidics community for the past decade. It exploits the flow-induced elastic lift and as well inertial lift (if the Reynolds number is not small) to focus particles toward size- and shape-dependent equilibrium positions. Such a continuous separation has thus far been demonstrated in viscoelastic fluids with a negligible or weak shear-thinning effect. We present in this work a systematic experimental study of the fluid shear-thinning effect on particle focusing and separation in weakly elastic xanthan gum solutions through straight rectangular microchannels. The effects of xanthan gum concentration and channel depth are examined for particle focusing and separation under varying flow rates.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.KP1.125
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700