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Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential

Chen, Lei
http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759

Abstract Details

2005, Master of Science, Ohio State University, Mechanical Engineering.
Electroosmotic flow in nanochannel with heterogeneous surface potential is investi¬gated. While several researchers have presented results for the case of periodic potential, and sudden change in potential, their model are based on the Boltzmann distribution or the Debye-Huckel approximation and neglected the convective terms in the mass flux equa¬tion. There has been no systematic study on the effect of the variation of wall potential on the flow structure either. In this thesis the distributions of potential, velocity and mole fractions are calculated numerically and the flow within the “nanovortex” resembles that of the classical Lamb vortex. The parameters that affect the circulation are investigated as well. The affect of the convective terms is discussed and the long electrode limit (the aspect ratio A << 1) is investigated for small (EDLs overlapped) and large (thin EDL) channels as well. A model is set up for the micro-device fabricated by Hansford. The numerical results compare well with the experimental data for the base case. The electroosmotic flow in annular channels is investigated as well.
A.T. Conlisk (Advisor)
Vishwanath V. Subramaniam (Committee Member)
151 p.
Mechanical Engineering

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Citations

  • Chen, L. (2005). Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759

    APA Style (7th edition)

  • Chen, Lei. Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential. 2005. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759.

    MLA Style (8th edition)

  • Chen, Lei. "Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential." Master's thesis, Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759

    Chicago Manual of Style (17th edition)

osu1418836759
119
© 2005, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.