Related Articles The final stages of capillary break-up of polymer solutions Phys. Fluids 24, 023101 (2012) Effects of particles on stability of flow-induced precursors J. Chem. Phys. 136, 054903 (2012) Kelvin-Helmholtz instability in viscoelastic fluids in presence of electro-magnetic fields Phys. Fluids 23, 094107 (2011) Electrohydrodynamic instabilities in thin liquid trilayer films Phys. Fl...

This study aims to investigate the mixing behaviors of deionized (DI) water and carboxymethyl cellulose (CMC) solutions in C-shaped serpentine micromixers over a wide range of flow conditions. The flow of CMC solutions exhibits shear-thinning behaviors. Numerical simulations are performed to investigate the effects of the mean flow speed, fluid properties and geometry parameters on flow and mix...

The multiphase flow of two immiscible liquids in a circular capillary micromixer was investigated numerically. The mass transfer characteristics of this flow pattern are of primary interest in this study. A simple neutralization titration reaction was chosen as the basis. The liquid-liquid two phase slug flow was formed during the mixing. The mixing was quantified for different volume flow rate...

We present an investigation into optimizing micromixer design for enhancing dielectrophoretic (DEP) microconcentrator performance. DEP-based microconcentrators use the dielectrophoretic force to collect particles on electrodes. Because the DEP force generated by electrodes decays rapidly away from the electrodes, DEP-based microconcentrators are only effective at capturing particles from a limi...

1. Wiggins S, Ottino JM (2004) Foundations of chaotic mixing. Philos Trans Royal Soc London Series A – Math Phys Eng Sci 362(1818):937–970 2. Ottino JM (1997) The kinematics of mixing: stretching, chaos and transport. Cambridge University Press, Cambridge 3. Aref H (1984) Stirring by Chaotic Advection. J Fluid Mech 143(Jun):1–21 4. Bottausci F, Mezic I, Meinhart CD, Cardonne C (2004) Mixing in ...

Mixing is essential in microdevices. Therefore, increasing the mixing efficiency has a significant influence on these devices. Using conductive obstacles with special geometry can improve quality of micromixers. In this paper, numerical study caused by an induced-charge electrokinetic micromixer was carried out using plate curved arc shape instead flat or other non-conductive for Newtonian flui...