Thermal analysis of mixed convective peristaltic pumping of nanofluids in the occurrence of an induced magnetic field and variable viscosity

Abstract

The present study investigates the heat and flow characteristics of mixed convective peristaltic transport of nanofluids containing magnetite γAl₂O₃ nanomaterials dispersed in conventional liquids, namely, ethylene glycol (C₂H₆O₂) and water (H₂O). The research provides a comprehensive analysis, considering various factors such as induced magnetic field, variable viscosity, buoyancy force, viscous dissipation, and porous media effects. The mathematical model is formulated based on a set of governing equations encompassing continuity, temperature, momentum, and induction, which are subsequently transformed into dimensionless form through appropriate scaling. A numerical method is employed to solve the resulting nonlinear differential equations. Results indicate that the velocity profile exhibits substantially higher magnitudes in the case of the γAl₂O₃-C₂H₆O₂ nanoliquid when compared to the γAl₂O₃-H₂O nanoliquid. Increasing the magnetic Reynolds number leads to a higher magnitude of the axial-induced magnetic field. An observed reduction in system entropy is associated with an increase in the permeability parameter.

KEYWORDS:

• Induced magnetic field
• variable viscosity
• porous medium
• thermal analysis
• wavy channel

Acknowledgement

The authors express their gratitude to the Deanship of Scientific Research at King Khalid University for funding this work through the Large Research Group Project under grant number RGP.2-504-44.

Disclosure statement

No potential conflict of interest was reported by the author(s).