TY - GEN
T1 - Enhancement of micro-flow mixing using DC nonlinear electrokinetic vortices
AU - Chen, J. K.
AU - Yang, Ruey-Jen
PY - 2007/8/23
Y1 - 2007/8/23
N2 - A nonlinear electrokinetics near a sharp corner was found to present in a dc electric field. Concentration polarization is the main mechanism responsible for the formation of a corner-vortex. Sharp corners (the angle of the corner is 30 degree) are designed in a microchannel to create vortices at the upstream near the corners. The rotational direction of the vortex near the corner is observed in experiments. This corner-vortex is used to enhance micromixing in this study. Furthermore, the fluorescent intensity is employed to observe the mixing index of fluid in the mixer. The degree of the mixing reaches to 78% when the fluid flows through an array of corners within 800 μm length.
AB - A nonlinear electrokinetics near a sharp corner was found to present in a dc electric field. Concentration polarization is the main mechanism responsible for the formation of a corner-vortex. Sharp corners (the angle of the corner is 30 degree) are designed in a microchannel to create vortices at the upstream near the corners. The rotational direction of the vortex near the corner is observed in experiments. This corner-vortex is used to enhance micromixing in this study. Furthermore, the fluorescent intensity is employed to observe the mixing index of fluid in the mixer. The degree of the mixing reaches to 78% when the fluid flows through an array of corners within 800 μm length.
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M3 - Conference contribution
AN - SCOPUS:34547966977
SN - 1420063421
SN - 9781420063424
SN - 1420061844
SN - 9781420061840
T3 - 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
SP - 340
EP - 343
BT - 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
T2 - 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007
Y2 - 20 May 2007 through 24 May 2007
ER -