首页|Effect of boundary slip on electroosmotic flow in a curved rectangular microchannel

Effect of boundary slip on electroosmotic flow in a curved rectangular microchannel

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The aim of this study is to numerically investigate the impact of boundary slip on electroosmotic flow(EOF)in curved rectangular microchannels.Navier slip boundary conditions were employed at the curved microchannel walls.The electric potential distribution was governed by the Poisson-Boltzmann equation,whereas the velocity distribution was determined by the Navier-Stokes equation.The finite-difference method was employed to solve these two equations.The detailed dis-cussion focuses on the impact of the curvature ratio,electrokinetic width,aspect ratio and slip length on the velocity.The results indicate that the present problem is strongly dependent on these parameters.The results demonstrate that by varying the dimensionless slip length from 0.001 to 0.01 while maintaining a curvature ratio of 0.5 there is a twofold increase in the maximum velocity.Moreover,this increase becomes more pronounced at higher curvature ratios.In addition,the velocity difference between the inner and outer radial regions increases with increasing slip length.Therefore,the incorporation of the slip boundary condition results in an augmented velocity and a more non-uniform velocity distribution.The find-ings presented here offer valuable insights into the design and optimization of EOF performance in curved hydrophobic microchannels featuring rectangular cross-sections.

electroosmotic flow(EOF)curved rectangular microchannelsslip boundary conditions

刘勇波

展开 >

College of Mathematics Science,Inner Mongolia Normal University,Hohhot 010022,China

Inner Mongolia Center for Applied Mathematics,Hohhot 010022,China

Natural Science Foundation of Inner Mongolia of ChinaProgram for Innovative Research Team in Universities of Inner Mongolia Autonomous RegionScientific Research Funding Project for introduced high level talents of IMNU

2021BS01008NMGIRT23232020YJRC014

2024

10.1088/1674-1056/ad3340

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(7)
  • 53