Unsteady ternary hybrid-nanofluid flow over an expanding/shrinking cylinder with multiple slips: a Yamada–Ota model implementation

Abstract

The primary objective of this investigation is to examine the thermal state of an unsteady ternary hybrid-nanofluid flow over an expanding/shrinking cylinder. The influence of radiation along with a non-uniform thermal source/sink is taken into account to expedite heat distribution. Multiple slips are considered at the cylinder interface. The mathematical model is simplified by incorporating appropriate transformations. A numerical solution is obtained using the bvp4c algorithm. The flow characteristics and behavior of the trihybrid nanoliquid exhibit significant changes when the cylinder expands or contracts. The effects of various emerging parameters are analyzed using graphical representations. The velocity field shows an opposite trend when the unsteadiness and mass transfer parameters are increased. The thermal field improves with higher values of the non-uniform source/sink parameter but deteriorates with an increase in the thermal slip parameter. The drag force increases with higher values of the unsteadiness parameter, while it decreases with amplified values of the mass suction and velocity slip parameters. A strong correlation is observed with previous studies which validates and strengthens the credibility of the present analysis.

Entropy generation analysis for convective flow of aqua Ag-CuO hybrid nanofluid adjacent to a warmed down-pointing rotating vertical cone

“…These have some positive influences for high performance and cost optimization in thermal engineering packages. Better thermophysical properties of hybrid nanofluids, such as dynamic viscosity, thermal conductivity and density can be achieved by opting the appropriate base fluids as well as solid particles (Jaballah et al , 2019; Afshari et al , 2021; Dinarvand, 2009; Shaheen et al , 2023). Hybrid nanofluids could be used in the following ways: biomedical, sunlight-based energy applications, acoustics, microfluid, miniature electrical, maritime designs, protection, further developed heat exchangers and numerous others (Dinarvand et al , 2022c; Ramzan et al , 2022a; Yazdi et al , 2014; Hoseininejad et al , 2021).…”