Electroosmotically driven flow of micropolar bingham viscoplastic fluid in a wavy microchannel: application of computational biology stomach anatomy

Comput Methods Biomech Biomed Engin. 2021 Feb;24(3):289-298. doi: 10.1080/10255842.2020.1827236. Epub 2021 Jan 29.

Abstract

A comprehensive mathematical model is presented to study the peristaltic flow of Bingham viscoplastic micropolar fluid flow inside a microlength channel with electro-osmotic effects. The electro-osmotic effects are produced due to an axially applied electric field. The circulation of this electric potential is calculated by utilizing Poisson Boltzmann equation. The dimensionless form of mathematical equations is obtained by using lubrication theory and Debye-Huckel approximation. We have obtained analytical solutions for the final dimensionless governing equations. Finally, the graphical results are added to further discuss the physical aspects of the problem. Electro-osmotic is mainly helping to control the flow and axial velocity decreases with an increase in the electric field but micro-angular velocity increases with an increase in electric field.

Keywords: Electroosmosis; Micropolar fluid; Non-Newtonian flow; Peristalsis; wall shear stress.

MeSH terms

  • Computational Biology*
  • Electroosmosis*
  • Models, Theoretical
  • Pressure
  • Rheology*
  • Stomach / anatomy & histology*
  • Stress, Mechanical
  • Viscosity