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Findings from Sharif University of Technology Broaden Understanding of Electrokinetics

May 20, 2014



By a News Reporter-Staff News Editor at Physics Week -- New research on Electrokinetics is the subject of a report. According to news reporting originating from Tehran, Iran, by VerticalNews correspondents, research stated, "In the present study, the thermal characteristics of electroosmotic flow of power-law fluids in rectangular microchannels in the presence of pressure gradient are investigated. The governing equations for fully developed flow under H1 thermal boundary conditions are first made dimensionless and subsequently solved through a finite difference procedure for a non-uniform grid."

Our news editors obtained a quote from the research from the Sharif University of Technology, "The influence of the major parameters on thermal features of the flow such as the temperature distribution and Nusselt number is discussed by a complete parametric study. The results reveal that the channel aspect ratio and the non-Newtonian characteristic of the fluid can affect the thermal behavior of the flow. It is observed that decreasing the channel aspect ratio causes the energy generated due to the viscous heating to become more significant. Furthermore, the viscous dissipation is higher for shear-thickening fluids. The Nusselt number is ascertained to be an increasing function of the channel aspect ratio regardless of the flow behavior index and pressure gradient."

According to the news editors, the research concluded: "Moreover, the results suggest that increasing the flow behavior index can either increase or decrease the Nusselt number, depending on the thermal conditions of the flow."

For more information on this research see: Thermal transport characteristics pertinent to electrokinetic flow of power-law fluids in rectangular microchannels. International Journal of Thermal Sciences, 2014;79():76-89. International Journal of Thermal Sciences can be contacted at: Elsevier France-Editions Scientifiques Medicales Elsevier, 23 Rue Linois, 75724 Paris, France. (Elsevier - www.elsevier.com; International Journal of Thermal Sciences - www.elsevier.com/wps/product/cws_home/600004)

The news editors report that additional information may be obtained by contacting M.A. Vakili, Sharif Univ Technol, Sch Mech Engn, Center Excellence Energy Convers, Tehran, Iran. Additional authors for this research include M.H. Saidi and A. Sadeghi.

Keywords for this news article include: Iran, Asia, Tehran, Physics, Power Law, Nanotechnology, Electrokinetics, Emerging Technologies

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Source: Physics Week


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