Channel flow of non-Newtonian fluid due to peristalsis under external electric and magnetic field

The overall objective of the current analysis is to examine how electroosmotic flow combined with peristaltic pumping phenomenon could ably contribute to intracellular fluid flow. The biofluid is taken as non-Newtonian Couple stress fluid, while micro-passage is approximated as two-dimensional incli...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering Journal of process mechanical engineering, 2022-12, Vol.236 (6), p.2670-2678
Main Authors: Asghar, Zeeshan, Saeed Khan, Muhammad Waris, Gondal, Muhammad Asif, Ghaffari, Abuzar
Format: Article
Language:English
Subjects:
Channel flow
Electroosmosis
Fluid dynamics
Fluid flow
Lorentz force
Magnetic fields
Newtonian fluids
Non Newtonian fluids
Stream functions (fluids)
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Summary:The overall objective of the current analysis is to examine how electroosmotic flow combined with peristaltic pumping phenomenon could ably contribute to intracellular fluid flow. The biofluid is taken as non-Newtonian Couple stress fluid, while micro-passage is approximated as two-dimensional inclined channel comprehending complex peristaltic walls. Following a traditional approach of peristaltic fluid flow problem balance of mass and momentum is utilized. Beside channel waves, flow is also generated by Lorentz force triggered by electric and magnetic fields. To integrate electric potential term Poisson-Boltzmann and Nernst Planck equation are utilized. Finally, a sixth order BVP in term of stream function is obtained by employing creeping flow, long wavelength and Debye-Hückel assumptions. A numerical solution is calculated and analyzed by plotting fluid velocity and level curves in MATLAB 2021b. It is observed that couple stress fluid flows with greater speed (in central region of the channel) as compared to Newtonian fluid. Moreover, electro-osmotic parameter and Debye-Hückel length are assistive factors to the fluid velocity in the lower half of the passage.
ISSN:0954-4089
2041-3009
DOI:10.1177/09544089221097693