Electroosmotic flow of pseudoplastic nanoliquids via peristaltic pumping

  • Prakash Jayavel
  • Ravinder Jhorar
  • Dharmendra TripathiEmail author
  • Martin N. Azese
Technical Paper


The study of electroosmotic flow of biorheological fluids has been employed in the advancement of diversified biomicrofluidics systems. To explore more in this field, a mathematical model is developed to investigate the electroosmotic flow of pseudoplastic aqueous nanoliquids in microchannel. A tangent hyperbolic fluid model is employed to describe the rheological behavior of the pseudoplastic fluid. Here, analytical solutions for potential distribution, temperature and nanoparticle fraction are derived and perturbation solution for stream function, pressure gradient and volumetric flow rate are obtained. The convective boundary condition is applied on the channel walls. The authentic assumptions of Debye–Hückel linearization, long wavelength and small Reynold’s number are employed in the dimensional conservative equations. The influences of various emerging parameters are graphically computed for axial velocity, pressure gradient, thermal temperature, nanoparticle volume fraction, skin friction coefficient and Nusselt profiles. To observe the thermal radiation effects, a thermal radiative flux model is also deployed. It is noticed that the heat transfer Biot number increases with increasing thermal temperature; however, a reversed behavior is reported for the nanoparticle volume fraction. Therefore, the present model does not only provide a deep theoretical insight to interpret the electroosmotic flow systems, but it will also be applicable in designing the emerging tool for biomicrofluidic devices/systems under peristalsis mechanisms.


Electroosmosis Peristaltic wall motion Pseudoplastic nanofluids Thermal slip Thermal radiation Nusselt number 


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Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2019

Authors and Affiliations

  1. 1.Department of MathematicsAvvaiyar Government College for WomenKaraikalIndia
  2. 2.Department of Mechanical EngineeringManipal UniversityJaipurIndia
  3. 3.Department of MathematicsNational Institute of TechnologySrinagar (Garhwal)India
  4. 4.Department of Mechanical EngineeringTexas Tech UniversityLubbockUSA

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