Abstract
This article deals with carbon nanoliquid flow due to stretchable rotating disk with the effect of Cattaneo–Christov heat flux model. Both SWCNTs and MWCNTs are considered with ethylene glycol as the base fluid. The effects of nanoparticle volume friction, normally applied magnetic field, stretching factor, velocity, and thermal slip factors are examined. The fundamental flow governing equations are transformed into dimensionless system of coupled nonlinear ordinary differential equations, and they are solved numerically using spectral quasi-linearization method (SQLM). Employing graphs and tables, the results of velocity and temperature fields as well as skin friction coefficient and local heat transfer rate are analyzed and presented via embedded parameters. The results reveal that higher velocity fields and lower temperature fields are noticed in the MWCNT nanofluids than SWCNT nanofluids. The higher incidence of magnetic field improves the thermal boundary layer thickness. A growth in velocity slip factor reduces the momentum boundary layer thickness of the nanoliquid flow. Generally, radial stretching of the disk is helpful in improving the cooling process of the rotating disk in practical applications.
Highlights
Nanofluids have gained remarkable attention of researchers due to their inspiring heat transfer in various industrial and engineering applications
Nanofluids consist of nanoscale particles such as copper, alumina, carbides, nitrides, metal oxides, graphite, and carbon nanotubes which enhance the thermal conductivity of base fluids (Mahanthesh et al [1] and Ahmad et al [2]). ese nanofluids have widespread applications in modern systems of heating and cooling, solar cells, generation of new fuels, hybrid-powered engines, cancer therapy, drug delivery, and medicine (Hsiao [3] and Aziz et al [4])
It is shown that the normalized skin friction coefficient grows as nanoparticle volume fraction increases from 0.01 to 0.1 for single-wall carbon nanotubes (SWCNTs) nanofluid
Summary
Nanofluids have gained remarkable attention of researchers due to their inspiring heat transfer in various industrial and engineering applications Common working fluids such as water, engine oils, and ethylene glycol have restricted thermal performances which limit their usage in modernday cooling applications. Ese nanofluids have widespread applications in modern systems of heating and cooling, solar cells, generation of new fuels, hybrid-powered engines, cancer therapy, drug delivery, and medicine (Hsiao [3] and Aziz et al [4]). Due to these various applications of nanofluids, many studies associated with the flow of nanofluids have been conducted. Convinced works in this direction are explained by Shashikumar et al [9], Khan et al [10], Uddin et al [11], and Khan et al [12]
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