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HomeDiffusion FoundationsDiffusion Foundations Vol. 26Effects of Retardation Time on Non-Newtonian...

Effects of Retardation Time on Non-Newtonian Electro-Osmotic Flow in a Micro-Channel

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Abstract:

In this paper, we have studied the effects of retardation time of non-Newtonian Oldroyd-B type fluid driven by Helmholtz-Smoluchowski velocity in a micro-channel. The potential electric field is applied along the length of the micro-channel describing by the Poisson–Boltzmann equation. The governing model equation was solved analytically using the classical method of partial differential equations. Analytical solution was simulated with the help of MATHEMATICA software and the graphical results for various physical flow parameters were analyzed. Results shows that for larger values of retardation time of a viscoelastic fluid the higher the viscoelastic effect of the fluid and this makes it to need more time for the stress to respond to deformation. Also, the electrokinetic width of micro-channel play a vital rule on the performance of velocity distribution.

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Periodical:

Diffusion Foundations (Volume 26)

Pages:

39-52

DOI:

https://doi.org/10.4028/www.scientific.net/DF.26.39

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Online since:

March 2020

Authors:

G.T. Adamu, A.M. Kwami, Mohammed Abdulhameed*, Dauda Gulibur Yakubu

Keywords:

Analytical Solutions, Electro-Osmotic Flow, Micro-Channel, Non-Newtonian Fluid

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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