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

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 an...

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Main Authors: Saikrishnan Ponnaiah, A. Sahaya Jenifer, E. Natarajan
Format: Article
Language:English
Published: Semnan University 2022-11-01
Series:Journal of Heat and Mass Transfer Research
Subjects:
Online Access:https://jhmtr.semnan.ac.ir/article_7323_3e126ae0f780c17bbf617be276b9127c.pdf
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author Saikrishnan Ponnaiah
A. Sahaya Jenifer
E. Natarajan
author_facet Saikrishnan Ponnaiah
A. Sahaya Jenifer
E. Natarajan
author_sort Saikrishnan Ponnaiah
collection DOAJ
description 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).
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spelling doaj.art-63d52c98ec2a426d98d98a325f2f3da72024-03-17T08:04:36ZengSemnan UniversityJournal of Heat and Mass Transfer Research2345-508X2383-30682022-11-019212914010.22075/jhmtr.2023.22926.13397323Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass TransferSaikrishnan Ponnaiah0A. Sahaya Jenifer1E. Natarajan2Department of Mathematics, National Institute of Technology, Tiruchirappalli, IndiaDepartment of Mathematics, National Institute of Technology, Tiruchirappalli, IndiaDepartment of Mathematics, Indian Institute of Space Science and Technology, Thiruvananthapuram, KeralaThis 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).https://jhmtr.semnan.ac.ir/article_7323_3e126ae0f780c17bbf617be276b9127c.pdfboundary layerheat transfervariable propertiesmixed convectionmhdnon-uniform mass transfernon-similar solutionrotating sphere
spellingShingle Saikrishnan Ponnaiah
A. Sahaya Jenifer
E. Natarajan
Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
Journal of Heat and Mass Transfer Research
boundary layer
heat transfer
variable properties
mixed convection
mhd
non-uniform mass transfer
non-similar solution
rotating sphere
title Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
title_full Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
title_fullStr Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
title_full_unstemmed Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
title_short Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer
title_sort unsteady magnetohydrodynamic mixed convection flow over a rotating sphere with sinusoidal mass transfer
topic boundary layer
heat transfer
variable properties
mixed convection
mhd
non-uniform mass transfer
non-similar solution
rotating sphere
url https://jhmtr.semnan.ac.ir/article_7323_3e126ae0f780c17bbf617be276b9127c.pdf
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AT asahayajenifer unsteadymagnetohydrodynamicmixedconvectionflowoverarotatingspherewithsinusoidalmasstransfer
AT enatarajan unsteadymagnetohydrodynamicmixedconvectionflowoverarotatingspherewithsinusoidalmasstransfer