Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model

The unsteady laminar boundary layer flow of a nanofluid and heat transfer over a permeable shrinking cylinder using the Buongiorno’s nanofluid model is investigated. Using a similarity transformation, the governing partial differential equations are transformed into a system of ordinary differential...

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Main Authors: Khairy Zaimi, Anuar Mohd Ishak, Pop, Ioan
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:http://journalarticle.ukm.my/11397/
http://journalarticle.ukm.my/11397/1/40%20Khairy%20Zaimi.pdf
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author Khairy Zaimi,
Anuar Mohd Ishak,
Pop, Ioan
author_facet Khairy Zaimi,
Anuar Mohd Ishak,
Pop, Ioan
author_sort Khairy Zaimi,
building UKM Institutional Repository
collection Online Access
description The unsteady laminar boundary layer flow of a nanofluid and heat transfer over a permeable shrinking cylinder using the Buongiorno’s nanofluid model is investigated. Using a similarity transformation, the governing partial differential equations are transformed into a system of ordinary differential equations and then solved numerically using a shooting method. The numerical results are obtained for velocity, temperature and concentration profiles as well as the skin friction coefficient, the local Nusselt number and the local Sherwood number. Dual solutions are found to exist in a certain range of the suction and unsteadiness parameters. It is observed that suction parameter increase both the skin friction coefficient and the heat transfer rate at the surface, whereas the opposite trend is obtained for the Sherwood number. It is also observed that suction widens the range of the unsteadiness parameter for which the solution exists.
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spelling oai:generic.eprints.org:113972018-02-15T05:51:42Z http://journalarticle.ukm.my/11397/ Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model Khairy Zaimi, Anuar Mohd Ishak, Pop, Ioan The unsteady laminar boundary layer flow of a nanofluid and heat transfer over a permeable shrinking cylinder using the Buongiorno’s nanofluid model is investigated. Using a similarity transformation, the governing partial differential equations are transformed into a system of ordinary differential equations and then solved numerically using a shooting method. The numerical results are obtained for velocity, temperature and concentration profiles as well as the skin friction coefficient, the local Nusselt number and the local Sherwood number. Dual solutions are found to exist in a certain range of the suction and unsteadiness parameters. It is observed that suction parameter increase both the skin friction coefficient and the heat transfer rate at the surface, whereas the opposite trend is obtained for the Sherwood number. It is also observed that suction widens the range of the unsteadiness parameter for which the solution exists. Penerbit Universiti Kebangsaan Malaysia 2017-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11397/1/40%20Khairy%20Zaimi.pdf Khairy Zaimi, and Anuar Mohd Ishak, and Pop, Ioan (2017) Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model. Sains Malaysiana, 46 (9). pp. 1667-1674. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid46bil9_2017/KandunganJilid46Bil9_2017.html
spellingShingle Khairy Zaimi,
Anuar Mohd Ishak,
Pop, Ioan
Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title_full Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title_fullStr Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title_full_unstemmed Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title_short Unsteady flow of a nanofluid past a permeable shrinking cylinder using Buongiorno’s model
title_sort unsteady flow of a nanofluid past a permeable shrinking cylinder using buongiorno’s model
url http://journalarticle.ukm.my/11397/
http://journalarticle.ukm.my/11397/
http://journalarticle.ukm.my/11397/1/40%20Khairy%20Zaimi.pdf