Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration

An MHD unsteady start-up (i.e. motion from rest) boundary layer flow past a moving vertical plate in a saturated porous medium with variable surface temperature and concentration is studied. The convective contributions to flow and heat transfer process are neglected due to slow motion. These rend...

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Main Authors: Sachidananda Sahoo, Prasanna Kumar Rout, Gouranga Charana Dash
Format: Article
Language:English
Published: Prince of Songkla University 2022-06-01
Series:Songklanakarin Journal of Science and Technology (SJST)
Subjects:
Online Access:https://sjst.psu.ac.th/journal/44-3/15.pdf
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author Sachidananda Sahoo
Prasanna Kumar Rout
Gouranga Charana Dash
author_facet Sachidananda Sahoo
Prasanna Kumar Rout
Gouranga Charana Dash
author_sort Sachidananda Sahoo
collection DOAJ
description An MHD unsteady start-up (i.e. motion from rest) boundary layer flow past a moving vertical plate in a saturated porous medium with variable surface temperature and concentration is studied. The convective contributions to flow and heat transfer process are neglected due to slow motion. These render the governing equations linear, paving the way for solution by Laplace Transform. The novelty of this study is laid down as (i) Embedding the vertical plate in a saturated uniformly porous medium. (ii) Considering the thermal radiation in case of large temperature gradient. Some important findings of the study are: The presence of a porous matrix opposes the decelerating effect of resistive electromotive force as well as viscous drag of the boundary surface. The hiking of the velocity profiles near the plate may be attributed to overriding the effect of buoyancy forces on viscous drag.
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spelling doaj.art-642bbe1565824f8facbb7474d335b0712023-04-11T07:31:09ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952022-06-0144369870710.14456/sjst-psu.2022.95Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentrationSachidananda Sahoo0Prasanna Kumar Rout1Gouranga Charana Dash2Department of Mathematics, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar, Odisha, 751030 IndiaDepartment of Mathematics, Gandhi Institute for Technology, Bhubaneswar, Odisha, 752054 IndiaDepartment of Mathematics, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar, Odisha, 751030 IndiaAn MHD unsteady start-up (i.e. motion from rest) boundary layer flow past a moving vertical plate in a saturated porous medium with variable surface temperature and concentration is studied. The convective contributions to flow and heat transfer process are neglected due to slow motion. These render the governing equations linear, paving the way for solution by Laplace Transform. The novelty of this study is laid down as (i) Embedding the vertical plate in a saturated uniformly porous medium. (ii) Considering the thermal radiation in case of large temperature gradient. Some important findings of the study are: The presence of a porous matrix opposes the decelerating effect of resistive electromotive force as well as viscous drag of the boundary surface. The hiking of the velocity profiles near the plate may be attributed to overriding the effect of buoyancy forces on viscous drag.https://sjst.psu.ac.th/journal/44-3/15.pdfmhd flowthermal radiationchemical reactionporous matrixvariable surface temperature
spellingShingle Sachidananda Sahoo
Prasanna Kumar Rout
Gouranga Charana Dash
Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
Songklanakarin Journal of Science and Technology (SJST)
mhd flow
thermal radiation
chemical reaction
porous matrix
variable surface temperature
title Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
title_full Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
title_fullStr Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
title_full_unstemmed Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
title_short Radiation effect on MHD flow through porous medium past a vertical plate with time dependent surface temperature and concentration
title_sort radiation effect on mhd flow through porous medium past a vertical plate with time dependent surface temperature and concentration
topic mhd flow
thermal radiation
chemical reaction
porous matrix
variable surface temperature
url https://sjst.psu.ac.th/journal/44-3/15.pdf
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