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

S. Sindhu (Department of Mathematics, Presidency University, Bengaluru, India)
Gireesha B.J. (Department of Studies and Research in Mathematics, Kuvempu University, Shivamogga, India)
G. Sowmya (Department of Mathematics, Ramaiah Institute of Technology, Bengaluru, India)
Oluwole Daniel Makinde (Faculty of Military Science, Stellenbosch University, Stellenbosch, South Africa)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 11 March 2022

Issue publication date: 16 August 2022

135

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.

Keywords

Acknowledgements

The authors confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.

Citation

Sindhu, S., B.J., G., Sowmya, G. and Makinde, O.D. (2022), "Hybrid nanoliquid flow through a microchannel with particle shape factor, slip and convective regime", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 32 No. 10, pp. 3388-3410. https://doi.org/10.1108/HFF-11-2021-0733

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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