Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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SIMULATION OF A MICROPUMP WITH STEP ELECTRODES

계단 모양 전극을 가진 미세펌프 해석

  • 김병재 (한국원자력연구원, 열수력안전연구부) ;
  • 이승현 (한국기계연구원, 프린팅공정/자연모사 연구실) ;
  • 성형진 (한국과학기술원, 기계공학과)
  • Received : 2010.09.20
  • Accepted : 2010.12.10
  • Published : 2010.12.31
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Abstract

The flow rate is higher in ACEO micro-pumps with step electrodes than in micro-pumps with planar asymmetric electrodes. In the present study, numerical simulations were made of a ACEO micro-pump with step electrodes to investigate the effects of electrode design parameters on the pumping flow rate. The electrical charge at the electrodes, the fluid flow, and potential were solved, taking into account the finite size of ions, that is, the steric effect. This effect is recognized to be capable of quantifying the electrical charge more accurately in the electrical double layer subject to high voltages. Geometrical parameters such as heights, widths, and gaps of three-dimensional electrodes were optimized to enhance the pumping flow rate. Moreover, the effect of amplitude and frequency of AC was studied.

Keywords

References

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