Electrokinetic transport phenomena, such as electroosmosis, streaming potential, electrophoresis, and sedimentation potential, are central to many micro- and nano-channel flows. During continuum modeling of such phenomena, incorporation of the electrical body force term can make the fluid momentum conservation equation highly non-linear. This non-linearity is often ignored in small-scale electrokinetic flow modeling because of our implicit reliance on the linearity of the Stokes equations for low Reynolds number flows. In this paper, ramifications of this non-linear Stokes equation in electrokinetic flows will be described with examples of our recent studies on pressure driven flows through porous media for electrokinetic power generation, electroosmotic flow of charged entities in nanochannels, and flow of DNA through self-assembled porous media under pulsed electric fields.
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ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5450-1
PROCEEDINGS PAPER
Effects of Non-Linearity of the Momentum Conservation Equation During Electrokinetic Transport in Nano and Microchannels Available to Purchase
Subir Bhattacharjee,
Subir Bhattacharjee
University of Alberta, Edmonton, AB, Canada
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Noor Al Quddus
Noor Al Quddus
Bangladesh University of Engineering & Technology, Dhaka, Bangladesh
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Subir Bhattacharjee
University of Alberta, Edmonton, AB, Canada
Noor Al Quddus
Bangladesh University of Engineering & Technology, Dhaka, Bangladesh
Paper No:
FEDSM-ICNMM2010-30163, pp. 1509-1515; 7 pages
Published Online:
March 1, 2011
Citation
Bhattacharjee, S, & Quddus, NA. "Effects of Non-Linearity of the Momentum Conservation Equation During Electrokinetic Transport in Nano and Microchannels." Proceedings of the ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 1509-1515. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30163
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