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ARTICLE

Numerical Study of Temperature-Dependent Viscosity and Thermal Conductivity of Micropolar Ag–MgO Hybrid Nanofluid over a Rotating Vertical Cone

by Mekonnen S. Ayano^1,*, Thokozani N. Khumalo¹, Stephen T. Sikwila², Stanford Shateyi³

1 Department of Mathematics, University of Eswatini, Kwaluseni, M201, Eswatini
2 Department of Mathematical Sciences, Sol Plaatje University, Kimberley, 8301, South Africa
3 Department of Mathematical and Computational Sciences, University of Venda, Thohoyandou, 0950, South Africa

* Corresponding Author: Mekonnen S. Ayano. Email:

(This article belongs to the Special Issue: Computational and Numerical Advances in Heat Transfer: Models and Methods I)

Frontiers in Heat and Mass Transfer 2024, 22(4), 1153-1169. https://doi.org/10.32604/fhmt.2024.048474

Received 08 December 2023; Accepted 29 January 2024; Issue published 30 August 2024

Abstract

The present paper examines the temperature-dependent viscosity and thermal conductivity of a micropolar silver ()−Magnesium oxide () hybrid nanofluid made of silver and magnesium oxide over a rotating vertical cone, with the influence of transverse magnetic field and thermal radiation. The physical flow problem has been modeled with coupled partial differential equations. We apply similarity transformations to the non-dimensionalized equations, and the resulting nonlinear differential equations are solved using overlapping grid multidomain spectral quasilinearization method. The flow behavior for the fluid is scrutinized under the impact of diverse physical constraints, which are illustrated graphically. The results of the skin friction coefficient and Nusselt number varying different flow parameters are presented in the form of a table. It is observed that the main flow of the hybrid nanofluid, nano particle fraction of silver and Magnesium/water, enhances compared to the mono-nano fluid as the coupling number increases. The application of studies like this can be found in the atomization process of liquids such as centrifugal pumps, viscometers, rotors, fans.

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