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

Bibliographic Details
Main Author:	Chen, Lei
Language:	English
Published:	The Ohio State University / OhioLINK 2005
Subjects:	Mechanical Engineering
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759

id	ndltd-OhioLink-oai-etd.ohiolink.edu-osu1418836759
record_format	oai_dc
spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-osu14188367592021-08-03T06:28:37Z Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential Chen, Lei 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. 2005 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759 http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Mechanical Engineering
spellingShingle	Mechanical Engineering Chen, Lei Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
author	Chen, Lei
author_facet	Chen, Lei
author_sort	Chen, Lei
title	Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
title_short	Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
title_full	Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
title_fullStr	Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
title_full_unstemmed	Two-Dimensional Electroosmotic Flow in Rectangular Nanochannel with Heterogeneous Surface Potential
title_sort	two-dimensional electroosmotic flow in rectangular nanochannel with heterogeneous surface potential
publisher	The Ohio State University / OhioLINK
publishDate	2005
url	http://rave.ohiolink.edu/etdc/view?acc_num=osu1418836759
work_keys_str_mv	AT chenlei twodimensionalelectroosmoticflowinrectangularnanochannelwithheterogeneoussurfacepotential
_version_	1719437462511550464

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

Similar Items