THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Kai Zhang

,

Fu-Zhen Tian

,

Ming-Zhou Yu

INDUCED-CHARGE ELECTROOSMOSIS AROUND CONDUCTING AND JANUS CYLINDER IN MICROCHIP

ABSTRACT
The induced-charge elecetroosmosis around conducting/Janus cylinder with arbitrary Debye thickness is studied numerically, when an direct current weak electric filed is suddenly applied in a confined microchannel. It’s found that there are four large circulations around the conducting cylinder, and the total flux in the microchannel is zero; there are two smaller circulations around the Janus cylinder, and they are compressed to wall. A bulk flux, which has a parabolic relation with the applied electric field, is also predicted.
KEYWORDS
induced-charge electroosmosis, conducting, microchip
PAPER SUBMITTED: 2012-08-01
PAPER REVISED: 2012-09-05
PAPER ACCEPTED: 2012-09-12
DOI REFERENCE: https://doi.org/10.2298/TSCI1205502Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 5, PAGES [1502 - 1506]
REFERENCES
  1. Li, Z. H., Lin, J. Z., Nie, D. M., New Approach to Minimize Dispersion Induced by Turn in the Capillary Electrophoresis Channel Flows, Applied Mathematics and Mechanics, 26 (2005), 6, pp. 685-690
  2. Wang, R. J., Lin, J. Z., Li, Z. H., Study on the Impacting Factors of Transverse Diffusion in the Microchannels of T-sensors, Journal of Nanoscience and Nanotechnology, 5 (2005), 8, pp. 1281-1286
  3. Wang, R. J., Lin, J. Z., Numerical Analysis on a Passive Chaotic Micromixer with Helical Microchanne, Journal of Nanoscience and Nanotechnology, 6 (2006), 1, pp. 190-194
  4. Stone, H., Stroock, A., Ajdari, A., Engineering Flows in Small Devices: Microfluidics toward a Lab-ona- chip, Annual Review of Fluid Mechanics, 36 (2004), pp. 381-411
  5. Yariv, E., Miloh, T., Electro-Convection about Conducting Particles, Journal of Fluid Mechanics, 595 (2008), pp. 163-172
  6. Wu, Z., Li, D. Q., Micromixing Using Induced-Charge Electrokinetic Flow, Electrochimica Acta, 53 (2008), 19, pp. 5827-5835
  7. Wu, Z., Li, D. Q., Mixing and Flow Regulating by Induced-Charge Electrokinetic Flow in a Microchannel with a Pair of Conducting Triangle Hurdles, Microfluids and Nanofluids, 5 (2008), 1, pp. 65-76
  8. Zhao, H., Bau, H., Microfluidic Chaotic Stirrer Utilizing Induced-charge Electro-osmosis, Physical Review E, 75 (2007), 6, 066217-066225
  9. Zhao, H., Bau, H., On the Effect of Induced Electro-Osmosis on a Cylindrical Particle Next to a Surface, Langmuir, 23 (2007), 7, pp. 4053-4063
  10. Wang, R. J., Lin, J. Z., Li, Z. H., Analysis of Electro-Osmotic Flow Characteristics at Joint of Capillaries with Step Change in ζ-potential and Dimension, Biomedical Microdevices, 7 (2005), 2, pp. 131-135
  11. Wang, R. J., Lin, J. Z., Li, H. J., Chaotic mixing on a Micromixer with Barriers Embedded, Chaos Solitons & Fractals, 33 (2007), 4, pp. 1362-1366
  12. Bao, F. B., Lin, J. Z., Linear Stability Analysis for Various Forms of One-Dimensional Burnett Equation, Inter. J. of Nonlinear Sciences and Numerical Simulation, 6 (2005), 3, pp. 295-303
  13. Bao, F. B., Lin, J. Z., Shi, X., Burnett Simulations of Flow and Heat Transfer in Micro Couette Flow Using Second-Order Slip Conditions, Heat and Mass Transfer, 43 (2007), 6, pp. 559-566
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Induced-charge electroosmosis around conducting and Janus cylinder in microchip

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