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Externally applied magnetic force effect on the Couette flow of a viscous incompressible fluid with heat source/sink

Sheeba Juliet S. (Department of Mathematics, Sathyabama Institute of Science and Technology, Chennai, India)
Vidhya M. (Department of Mathematics, Sathyabama Institute of Science and Technology, Chennai, India)
Govindarajan A. (Department of Mathematics, SRM Institute of Science and Technology, Chennai, India)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 28 October 2022

Issue publication date: 25 September 2024

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Abstract

Purpose

This study aims to investigate the effect of externally applied magnetic force and heat transfer with a heat source/sink on the Couette flow with viscous dissipation in a horizontal rotating channel. The magnetic force is added to the governing equations. The effects of fluid flow parameters are observed under the applied magnetic force. In this system, the magnetic force is applied perpendicular to the plane of the fluid flow. In recent years, the magnetic field has renewed interest in aerospace technology. The physical and theoretical approach in the multidisciplinary field of magneto fluid dynamics (MFD) is applied in the field of aerospace vehicle design.

Design/methodology/approach

Authors use the perturbation method to solve and find the approximate solutions of differential equations. First, convert the partial differential equation to ordinary differential equation and calculate the approximate solutions in two cases. The first solution got by assuming heat generating in the fluid and the second one got when heat absorbing. After applying the external magnetic force, the effects of various fluid parameters velocity, temperature, skin friction coefficient and Nusselt number are found and discussed using tables and graphs.

Findings

It is found that the velocity of the fluid has decreased tendency when the rotation of the fluid and magnetic force on the fluid increases. The temperature of the fluid, Prandtl value and Eckert number increased when the heat source generated heat. When heat absorbs the heat, sink parameter increases and the temperature of the fluid decreases. Also, while heat absorbs, the temperature increases when the Prandtl value and Eckert number increase.

Originality/value

The skin friction coefficient on the surface increases, when the rotation parameter and the magnetic force parameter of the fluid increase. In the case of heat generating, the Nusselt number increased, while the Eckert number and Prandtl numbers increased. Also, the Nusselt number has larger values when the heat source parameter has near the constant temperature, and it has smaller values when the temperature varies. In the case of heat-absorbing, the Nusselt number decreased when the Eckert and Prandtl numbers increased. Also, the Nusselt number varies up and down while the heat absorbing parameter increases.

Keywords

Acknowledgements

Conflict of interest: No conflict of interest and no funding received. All the data were presented inside the manuscript and have been supplied according to request. No animals and humans are involved in the study.

Data availability statement: The data used to support the findings of this study are included within the article.

Citation

S., S.J., M., V. and A., G. (2024), "Externally applied magnetic force effect on the Couette flow of a viscous incompressible fluid with heat source/sink", Aircraft Engineering and Aerospace Technology, Vol. 96 No. 8, pp. 1053-1060. https://doi.org/10.1108/AEAT-07-2022-0187

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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