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Numerical simulation of a flat electroosmotic driven flow in the presence of a charged mid-plate

Author

Listed:
  • Omid Reza Mohammadipour

    (Mechanical Engineering Department, Payame Noor University (PNU), P. O. Box 19395-3697 Tehran, Iran)

  • Hamid Niazmand

    (Mechanical Engineering Department, Ferdowsi University of Mashhad, P. O. Box 91775-1111 Azadi Sq., Mashhad, Iran)

Abstract

Motivated by the growing interest in electroosmotic flows (EOFs) as a reliable no moving parts strategy to control fluid motion in various micro fluidics, two-dimensional (2D) steady-state EOFs in the presence of a charged mid-plate have been numerically investigated. A variation of lattice Boltzmann models is used to recover all governing equations, where the Nernst–Planck equation is employed to model the internal electrical field. Results are validated by comparing the velocity profiles in the 2D uniform EOFs against their analytical solutions. The numerical results show that the velocity profile and volumetric flow rate are strongly influenced by the ratio of the electrical double layer (EDL) thickness to the channel height. In addition, the effects of positioning and thickness of the charged mid-plate on the electric field distribution, velocity profile and flow rate are examined in detail.

Suggested Citation

  • Omid Reza Mohammadipour & Hamid Niazmand, 2015. "Numerical simulation of a flat electroosmotic driven flow in the presence of a charged mid-plate," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 26(07), pages 1-20.
    • Handle: RePEc:wsi:ijmpcx:v:26:y:2015:i:07:n:s0129183115500783
    DOI: 10.1142/S0129183115500783
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    1. מחקר - ביטוח לאומי, 2007. "ינואר 2007," Working Papers 212, National Insurance Institute of Israel.
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