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Optimization of a serpentine model for low-dispersion flows in micro channel turns

Fathollahi, E ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. Publisher: 2009
  3. Abstract:
  4. Chip-based micro fluidic separation systems often use serpentine channels to attain long separation lengths in a compact area. Such designs suffer from the dispersion, mostly 'racetrack' effect, due to the bends in the micro channels. The main goal of this paper is obtaining a model which has minimal racetrack in a serpentine geometry. A numerical analysis leads us to an optimized model which is different from previous attempts in this field. Our model uses modified turn radii, optimal length between bends with a constant zeta-potential boundary condition and a constant width through micro channel turns. It is shown that traveling fluid in this geometry has minimal dispersion as well as longer separation length
  5. Keywords:
  6. Dispersion minimization ; Microchip electrophoresis ; Dispersion flow ; Microchip electrophoresis ; Racetrack ; Separation systems ; Serpentine channel ; Serpentine geometries ; Dispersions ; Electric coils ; Electrophoresis ; MEMS ; Microelectromechanical devices ; Microprocessor chips ; Optimization ; Separation ; Serpentine ; Silicate minerals ; Finite element method
  7. Source: 5th International Conference on Perspective Technologies and Methods in MEMS Design, MEMSTECH 2009, Lviv-Polyana, 22 April 2009 through 24 April 2009 ; 2009 , Pages 136-140 ; 9789662191066 (ISBN)
  8. URL: https://ieeexplore.ieee.org/document/5069732