A numerical investigation was conducted to explore the laminar electroosmotic heat and mass transport in a single cell or pore of a regular 2-D porous structure with the typical scale of order 100μm. The influence of the ratio, f, of the dielectric constants of the fluid, εl, to that of solid matrix, εs, on the electroosmotic flow was studied. It was found that the larger f was the more electroosmotic flow was enhanced. A comparison between the electroosmotic and presser-driven flows was made under different Reynolds numbers conditions. The heat transfer in a single cell was also considered under the condition of no heat conduction along the flow direction and the results showed that the effective thermal conductivity was significantly influenced by Reynolds number.
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ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
July 17–22, 2005
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division and Electronic and Photonic Packaging Division
ISBN:
0-7918-4733-0
PROCEEDINGS PAPER
Numerical Investigation on Electroosmotic Transport in Porous Media
X. F. Peng,
X. F. Peng
Tsinghua University, Beijing, China
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B. X. Wang
B. X. Wang
Tsinghua University, Beijing, China
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Z. Yang
Tsinghua University, Beijing, China
X. F. Peng
Tsinghua University, Beijing, China
B. X. Wang
Tsinghua University, Beijing, China
Paper No:
HT2005-72367, pp. 703-709; 7 pages
Published Online:
March 9, 2009
Citation
Yang, Z, Peng, XF, & Wang, BX. "Numerical Investigation on Electroosmotic Transport in Porous Media." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 3. San Francisco, California, USA. July 17–22, 2005. pp. 703-709. ASME. https://doi.org/10.1115/HT2005-72367
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