The purpose of this study is to carry out a numerical investigation of injection type EHD pumps. To this end, the flow is considered laminar, steady and incompressible flow. The flow model is based on the assumptions that the fluid is Newtonian and the fluid properties are constant. The results show that all of the ions emitted from emitter are not collected by next collector electrode, but some of this injected ions move to the previous one, which causes back flow. Although this back flow is smaller than net pumping flow but it would reduce the net flow. Because of existence of this back flow, finding the optimum distance of electrodes from each other is necessary. This study shows that when the distance from emitter electrode to next collector is half of its distance from previous one, the maximum flow rate will be achieved. The results also show that flow rate reduces linearly as the pressure increases.
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ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
June 22–24, 2009
Pohang, South Korea
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4349-9
PROCEEDINGS PAPER
Numerical Study of an Ion Injection EHD Micropump Available to Purchase
R. Ghazi,
R. Ghazi
Sharif University of Technology, Tehran, Iran
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M. S. Saidi,
M. S. Saidi
Sharif University of Technology, Tehran, Iran
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M. H. Saidi
M. H. Saidi
Sharif University of Technology, Tehran, Iran
Search for other works by this author on:
R. Ghazi
Sharif University of Technology, Tehran, Iran
M. S. Saidi
Sharif University of Technology, Tehran, Iran
M. H. Saidi
Sharif University of Technology, Tehran, Iran
Paper No:
ICNMM2009-82063, pp. 179-185; 7 pages
Published Online:
September 21, 2010
Citation
Ghazi, R, Saidi, MS, & Saidi, MH. "Numerical Study of an Ion Injection EHD Micropump." Proceedings of the ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels. Pohang, South Korea. June 22–24, 2009. pp. 179-185. ASME. https://doi.org/10.1115/ICNMM2009-82063
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