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Updated: Jul 25, 2025

Thermal Measurement Techniques in Analytical Microfluidic Devices
Published on: June 3, 2015
Thermal Analysis of a Reactive Variable Viscosity TiO2-PAO Nanolubricant in a Microchannel Poiseuille Flow
Oluwole Daniel Makinde1, Anuoluwa Esther Makinde2
1Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa.
Abstract:
This paper examines the flow structure and heat transfer characteristics of a reactive variable viscosity polyalphaolefin (PAO)-based nanolubricant containing titanium dioxide (TiO2) nanoparticles in a microchannel. The nonlinear model equations are obtained and numerically solved via the shooting method with Runge-Kutta-Fehlberg integration scheme. Pertinent results depicting the effects of emerging thermophysical parameters on the reactive lubricant velocity, temperature, skin friction, Nusselt number and thermal stability criteria are presented graphically and discussed. It is found that the Nusselt number and thermal stability of the flow process improve with exothermic chemical kinetics, Biot number, and nanoparticles volume fraction but lessen with a rise in viscous dissipation and activation energy.
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