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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.20 No.12
- 발행연도
- 2006.12
- 수록면
- 2,250 - 2,264 (15page)
이용수
초록· 키워드
오류제보하기
In micro- and nanoflows, the Boltzmann distribution is valid only when the electric double layers (EDL's) are not overlapped and the ionic distributions establish an equilibrium state. The present study has numerically investigated unsteady two-dimensional fully-developed electroosmotic flows between two parallel flat plates in the nonoverlapped and overlapped EDL cases, without any assumption of the Boltzmann distribution. For the study, two kinds of unsteady flows are considered ; one is the impulsive application of a constant electric field and the other is the application of a sinusoidally oscillating electric field. For the numerical simulations, the ionic-species and electric-field equations as well as the continuity and momentum ones are solved. Numerical simulations are successful in accurately predicting unsteady electroosmotic flows and ionic distributions. Results show that the nonoverlapped and overlapped cases are totally different in their basic characteristics. This study would contribute to further understanding unsteady electroosmotic flows in micro- and nanofluidic devices.
목차
1. Introduction
2. Numerical Method
3. Results
4. Conclusions
Acknowledgments
References
참고문헌 (25)
참고문헌 신청
Currie, I. G., 1974, Fundamental Mechanics of Fluids, McGraw-Hill, New York.
Dose, E. V. and Guiochon, G., 1993, "Timescales of Transient Processes in Capillary Electrophoresis," Journal of Chromatography A, Vol.652, pp.263~275.
Dutta, P. and Beskok, A., 2001, "Analytical Solution of Time Periodic Electroosmotic Flows: Analogies to Stokes'Second Problem," Analytical Chemistry, Vol.73, pp.5097~5102.
Erickson, D. and Li, D., 2003, "Analysis of Alternating Current Electroosmotic Flows in a Rectangular Microchannel," Langmuir, Vol.19, pp.5421~5430.
Hu, L., Harrison, J. D., and Masliyah, J. H., 1999, "Numerical Model of Electrokinetic Flow for Capillary Electrophoresis," Journal of Colloid and Interface Science, Vol.215, pp.300~312.
Dose, E. V. and Guiochon, G., 1993, "Timescales of Transient Processes in Capillary Electrophoresis," Journal of Chromatography A, Vol.652, pp.263~275.
Dutta, P. and Beskok, A., 2001, "Analytical Solution of Time Periodic Electroosmotic Flows: Analogies to Stokes'Second Problem," Analytical Chemistry, Vol.73, pp.5097~5102.
Erickson, D. and Li, D., 2003, "Analysis of Alternating Current Electroosmotic Flows in a Rectangular Microchannel," Langmuir, Vol.19, pp.5421~5430.
Hu, L., Harrison, J. D., and Masliyah, J. H., 1999, "Numerical Model of Electrokinetic Flow for Capillary Electrophoresis," Journal of Colloid and Interface Science, Vol.215, pp.300~312.
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