Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction

This paper focuses on the effects of suction as well as thermal radiation, chemical reaction, viscous dissipation and Joule heating on a two-dimensional natural convective flow of unsteady electrical magnetohydrodynamics (MHD) nanofluid over a linearly permeable stretching sheet. One significant asp...

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Main Authors: Daniel, Y. S., Aziz, Z. A., Ismail, Z., Salah, F.
Format: Article
Language:English
Published: Elsevier B.V. 2017
Subjects:
Online Access:http://eprints.utm.my/77235/1/ZAAziz2017_ImpactofThermalRadiationonElectricalMHD.pdf
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author Daniel, Y. S.
Aziz, Z. A.
Ismail, Z.
Salah, F.
author_facet Daniel, Y. S.
Aziz, Z. A.
Ismail, Z.
Salah, F.
author_sort Daniel, Y. S.
collection ePrints
description This paper focuses on the effects of suction as well as thermal radiation, chemical reaction, viscous dissipation and Joule heating on a two-dimensional natural convective flow of unsteady electrical magnetohydrodynamics (MHD) nanofluid over a linearly permeable stretching sheet. One significant aspect of this study is that electric field employed in revised Buongiorno model has been introduced in view of enhancement of thermal conductivity and consequently better convective heat transfer. The constitute governing equations have been converted into strong non-linear ordinary differential equations by employing suitable transformations and these transformed equations are solved by the Implicit finite difference. From this study, it is found that the presence of magnetic field and suction slows down the fluid motion while it enhances for higher values of an electric field which tends to firmness sticky effect. It is also found that enhancing thermal radiation leads to an increase in nanofluid temperature. The Nusselt number increases with both Brownian motion and unsteadiness parameters.
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spelling utm.eprints-772352018-05-31T09:53:30Z http://eprints.utm.my/77235/ Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction Daniel, Y. S. Aziz, Z. A. Ismail, Z. Salah, F. QA Mathematics This paper focuses on the effects of suction as well as thermal radiation, chemical reaction, viscous dissipation and Joule heating on a two-dimensional natural convective flow of unsteady electrical magnetohydrodynamics (MHD) nanofluid over a linearly permeable stretching sheet. One significant aspect of this study is that electric field employed in revised Buongiorno model has been introduced in view of enhancement of thermal conductivity and consequently better convective heat transfer. The constitute governing equations have been converted into strong non-linear ordinary differential equations by employing suitable transformations and these transformed equations are solved by the Implicit finite difference. From this study, it is found that the presence of magnetic field and suction slows down the fluid motion while it enhances for higher values of an electric field which tends to firmness sticky effect. It is also found that enhancing thermal radiation leads to an increase in nanofluid temperature. The Nusselt number increases with both Brownian motion and unsteadiness parameters. Elsevier B.V. 2017 Article PeerReviewed application/pdf en http://eprints.utm.my/77235/1/ZAAziz2017_ImpactofThermalRadiationonElectricalMHD.pdf Daniel, Y. S. and Aziz, Z. A. and Ismail, Z. and Salah, F. (2017) Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction. Journal of King Saud University - Science . ISSN 1018-3647 (In Press) https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032337048&doi=10.1016%2fj.jksus.2017.10.002&partnerID=40&md5=c3e5242eb348f0e91135eb2b91634c58 DOI:10.1016/j.jksus.2017.10.002
spellingShingle QA Mathematics
Daniel, Y. S.
Aziz, Z. A.
Ismail, Z.
Salah, F.
Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title_full Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title_fullStr Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title_full_unstemmed Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title_short Thermal radiation on unsteady electrical MHD flow of nanofluid over stretching sheet with chemical reaction
title_sort thermal radiation on unsteady electrical mhd flow of nanofluid over stretching sheet with chemical reaction
topic QA Mathematics
url http://eprints.utm.my/77235/1/ZAAziz2017_ImpactofThermalRadiationonElectricalMHD.pdf
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