Publication

Abstract : Micromixers are miniaturized mixing devices that have at least one of their characteristic dimensions in the micrometer scale, typically capable of handling microliters to milliliters of sample volume. While eddy diffusions and turbulence can achieve macroscale mixing, it is not possible at the microscale due to the large viscous effects owing to the small size of the micromixer. Because of the low Reynolds number associated with microfluidics devices, mixing in the micro-regime is mainly due to molecular diffusions and induced chaotic advection. Molecular diffusion results from the random motion of molecules, mainly due to concentration gradients of chemical potential. Chaotic advection is an induced phenomenon for microfluidic mixing by modifying the microchannel geometry and fluid motion.