| 초록 |
Since a curved channel provides convenient scheme for increasing the channel length per unit chip area in the direction of net flow, it is essential for the lab-on-chips system. In addition to channel integration, the inertial force in curved channels is generally applied to manipulate particle separation. It provides a development of secondary Dean flow and skewed flow distribution in spite of low Reynolds number. In this study, the Dean flow of inelastic fluids in curved rectangular channels is examined, applying numerical scheme for the pressure-driven transport. Non-Newtonian properties are involved based on the theoretical model with coupled equations of Cauchy momentum with the constitutive model of electrolytic fluids, including electrokinetic field equations. Effects of rheological properties on the flow pattern are explored with variations of pressure gradient. The axial velocity profile shows the inward skewness with a secondary motion for low Dean number. |
