Effects of Retardation Time on Non-Newtonian Electro-Osmotic Flow in a Micro-Channel
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...
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| Veröffentlicht in: | Diffusion foundations 2020-03, Vol.26, p.39-52, Article 39 |
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| creator | Kwami, A.M. Adamu, G.T. Abdulhameed, Mohammed Yakubu, Dauda Gulibur |
| description | 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. |
| doi_str_mv | 10.4028/www.scientific.net/DF.26.39 |
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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. 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| subjects | Boltzmann transport equation Computer simulation Electric fields Electrokinetics Electroosmosis Exact solutions Microchannels Partial differential equations Velocity distribution Viscoelastic fluids Viscoelasticity |
| title | Effects of Retardation Time on Non-Newtonian Electro-Osmotic Flow in a Micro-Channel |
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