Mathematical modeling and flow behavior of homogenous complex MWCNT/PEG nanofluids through Burger model with Maxwell representation.

Polyethylene glycol (PEG)-based nanofluids possess several unique properties that make them suitable for various applications. To utilize them on an industrial scale, it is crucial to understand their flow characteristics in different processing equipment. This article presents an investigation of the boundary layer flow of viscoelastic nanofluids over a moving wedge and plate, utilizing the Burger model with Maxwell representation for heat and mass transfer characteristics. The nanofluids utilized in this study consist of Polyethylene glycol (PEG) as the base fluid, and multi-wall carbon nanotubes (MWCNTs) as nonmaterial with a nanoparticle volume fraction ranging from 0.05% to 0.5%. Experimental data were collected in the form of storage (elastic) and loss (viscus) moduli against angular frequency, and mathematical expressions were derived to model this data at various nanoparticle volume fractions. These expressions were then incorporated into the flow equations, which were solved subject to appropriate boundary conditions using analytical techniques. The resulting velocity and temperature profiles, under the influence of nanoparticle volume fraction, are presented graphically. Additionally, physical quantities such as velocity and thermal boundary layer thickness, displacement, and momentum thickness were calculated numerically and presented in tabulated form. The findings of this study indicate that increasing nanoparticle volume fraction results in a decrease in the velocity profile and an increase in the temperature profile. [ABSTRACT FROM AUTHOR]