Numerical simulations of electrokinetic transport of a particle in a microfluidic confined domain

Qian Liang; Cunlu Zhao; Chun Yang; Jianmin Miao

doi:10.1117/12.861523

19 May 2010 Numerical simulations of electrokinetic transport of a particle in a microfluidic confined domain

Qian Liang, Cunlu Zhao, Chun Yang, Jianmin Miao

Proceedings Volume 7743, Southeast Asian International Advances in Micro/Nanotechnology; 77430B (2010) https://doi.org/10.1117/12.861523
Event: Southeast Asian International Advances in Micro/Nano-technology, 2010, Bangkok, Thailand

Abstract

The electrokinetic transport behaviors of a particle in a microfluidic confined domain under thin electrical double layer (EDL) assumption are investigated. The focus is placed on transport velocity development of the particle. A finite element method based numerical simulation is employed to solve the model. The results indicate that the particle's density, domain width and zeta potential ratio of the wall to the particle are important to the particle's migration. Moreover, the dynamic flow field and vortex evolution within the confined domain are examined. It is found that the translational migration of the particle is significantly affected by electroosmotic flow (EOF) induced vortex flow within the domain.

Citation Download Citation

Qian Liang, Cunlu Zhao, Chun Yang, and Jianmin Miao "Numerical simulations of electrokinetic transport of a particle in a microfluidic confined domain", Proc. SPIE 7743, Southeast Asian International Advances in Micro/Nanotechnology, 77430B (19 May 2010); https://doi.org/10.1117/12.861523

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