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**< Abstract >**

A numerical investigation is conducted on the electroosmotic flow and associated heat transfer in a two-dimensional microchannel. The objective of this study is to explore a new conceptual idea that is control of an electroosmotic flow by using a thermal field effect through the temperature-dependent physical properties. The results of numerical computations showed that a proper control of thermal field may be a viable means to manipulate various non-plug-like flow patterns. A constant vertical temperature difference across the channel produces a shear flow. The horizontally-varying thermal condition results in spatial variation of physical properties to generate fluctuating flow patterns. The temperature variation at the wall with alternating vertical temperature gradient induces a wavy flow.

Related publication: Ho Sang Kwak, Hyoungsoo Kim, Jae Min Hyun, and Tae-Ho Song, "Thermal control of Electroosmotic Flow in a Microchannel through Temperature-Dependent Properties," JCIS, Vol. 335, 2009, 123-129, (DOI: http://dx.doi.org/10.1016/j.jcis.2009.03.008)