Hybrid nanoliquid flow through a microchannel with particle shape factor, slip and convective regime

Abstract

Purpose This study aims to portray the systematic study of hybrid nanofluid with particle shape effect on significant heat transfer enhancement. The steady flow of hybrid nanoliquid in a microchannel with the aid of porous medium has been considered. The dispersion of copper and Al2O3 in water is taken as hybrid mixture. The impact of thermal radiation, slip length and convective conditions on flow and thermal features are examined numerically. Design/methodology/approach The modelled equations are made dimensionless by means of nondimensional entities. The solutions are computed numerically by the implementation of Runge–Kutta-based shooting technique. The results depict that the shape of hybrid mixtures plays a significant role in convective heat transfer. Relevant results on flow velocity, temperature, Nusselt number and friction factor for various physical constraints have been perused. The obtained outcomes are displayed graphically. Findings The acquired results depict that Nusselt number augments with Eckert number and solid volume fraction of hybrid nanoparticles, which has a vibrant role in enriching the heat transfer coefficient. Also, it is emphasized that the Nusselt number is larger for blade-shaped nanoparticle compared to other shapes. Originality/value The analysis of individual effect of thermal radiation, Joule heating, viscous dissipation and magnetic field on the flow of Cu and Al2O3 hybrid nanofluid through microchannel has vivacious role in augmenting heat transmission. Along with this, the impact of porous medium, shape factor, slip and convective peripheral conditions are also emphasized.

A Tesla Valve as a Micromixer for Fe3O4 Nanoparticles

“…In addition, the results of the present numerical model present great qualitative and quantitative agreement compared to the experimental results and other numerical models, as depicted in Table 2. Investigation was carried out of nanofluid flow through a microchannel subjected to various effects [11]. The slow water flow in the micromixer duct was expected to be laminar and steady-state.…”

“…Investigation was carried out of nanofluid flow through a microchannel subjected to various effects [11]. The slow water flow in the micromixer duct was expected to be laminar and steady-state.…”

“…The majority of experimental water purification methods involve magnetic nanoparticles due to their physicochemical properties [9]. Due to their spatial confinement, large surface area-volume ratio, and small size [10,11], bare or modified Fe 3 O 4 nanoparticles are most commonly used. Among other iron phases, maghemite and magnetite stand out due to strong magnetic moments and some structural features [12].…”

Exact solutions of hydromagnetic convective flow in a microchannel with superhydrophobic slip and temperature jump: Microfluidics applications

“…The unsteady convective flow of a magnetic hybrid nanofluid through a channel with semi-circular heaters and porous fins is investigated by Job et al 33 Shaw et al 34 delve into the behavior of hydromagnetic flow and heat transfer in non-Newtonian hybrid nanofluids, considering factors such as fluid friction and radiation models to elucidate their impact on thermal performance. Similarly, Sindhu et al 35 undertake a systematic exploration of hybrid nanofluids, studying the effect of particle shape on heat transfer enhancement in microchannels. Meanwhile, Das et al 36 propose a novel model to analyze electro-osmotic mixed convection in channels filled with ternary hybrid nanofluids under magnetic fields, aiming to understand the coupled effects of electrokinetic phenomena and heat transfer.…”