Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer

Ponnaiah, Saikrishnan; Jenifer, A. Sahaya; Natarajan, E.

doi:10.22075/jhmtr.2023.22926.1339

Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer

Document Type : Full Length Research Article

Authors

Saikrishnan Ponnaiah ¹

A. Sahaya Jenifer ¹

E. Natarajan ²

¹ Department of Mathematics, National Institute of Technology, Tiruchirappalli, India

² Department of Mathematics, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala

10.22075/jhmtr.2023.22926.1339

Abstract

This paper investigates the unsteady magnetohydrodynamic (MHD) mixed convective fluid flow over a rotating sphere. An implicit finite difference scheme, together with quasi-linearization, is used to find non-similar solutions for the governing equations. The impact of variable physical properties and viscous dissipation are included. It is observed that the skin friction coefficient in the axial direction and the heat transfer coefficient are increasing with an increase in MHD, mixed convection and rotation parameters and with time, whereas the effect is just the opposite for the skin friction coefficient in the rotational direction. The non-uniform slot suction(injection) and the slot movement influence the point of vanishing skin friction to move in the axial direction downstream (upstream).

Keywords

Boundary layer

Heat transfer

Variable properties

Mixed convection

MHD

Non-uniform mass transfer

Non-similar solution

Rotating sphere

Subjects

Mass Transfer

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