The heat transfer enhancement of natural convection, using electrohydrodynamic technique inside a horizontal enclosure heated from below, is studied numerically. The interactions between electric field, flow field, and temperature field are investigated by CFD methods. The flow and temperature fields are affected by voltage applied at the wire electrodes. For different voltages and number of electrodes, it is noticed that the Nusselt number increased in all cases and the best enhancement is obtained at lower Rayleigh numbers. It is also shown that increasing the number of electrodes doesn’t always cause an increase in the heat transfer enhancement. Actually, when the number of electrodes is equal to the number of Be´nard cells, the best heat transfer enhancement is obtained.
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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
Electrode Arrangement Effect on Natural Convection in a Horizontal Enclosure
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:
ICNMM2009-82074, pp. 187-196; 10 pages
Published Online:
September 21, 2010
Citation
Ghazi, R, Saidi, MS, & Saidi, MH. "Electrode Arrangement Effect on Natural Convection in a Horizontal Enclosure." 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. 187-196. ASME. https://doi.org/10.1115/ICNMM2009-82074
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