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Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid

An analysis is carried out to study the heat transfer characteristics of steady two-dimensional stagnation-point flow of a copper (Cu)-water nanofluid over a permeable stretching/shrinking sheet. The stretching/shrinking velocity and the ambient fluid velocity are assumed to vary linearly with the d...

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Main Authors: Bachok @ Lati, Norfifah, Ishak, Anuar, Nazar, Roslinda, Senu, Norazak
Format: Article
Language:English
English
Published: Springer 2013
Online Access:http://psasir.upm.edu.my/id/eprint/30059/1/Stagnation%20point%20flow%20toward%20a%20stretching.pdf
http://psasir.upm.edu.my/id/eprint/30059/
http://link.springer.com/journal/13661/2013/1/page/9
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spelling my.upm.eprints.300592015-08-25T03:10:32Z http://psasir.upm.edu.my/id/eprint/30059/ Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid Bachok @ Lati, Norfifah Ishak, Anuar Nazar, Roslinda Senu, Norazak An analysis is carried out to study the heat transfer characteristics of steady two-dimensional stagnation-point flow of a copper (Cu)-water nanofluid over a permeable stretching/shrinking sheet. The stretching/shrinking velocity and the ambient fluid velocity are assumed to vary linearly with the distance from the stagnation-point. Results for the skin friction coefficient, local Nusselt number, velocity as well as the temperature profiles are presented for different values of the governing parameters. It is found that dual solutions exist for the shrinking case, while for the stretching case, the solution is unique. The results indicate that the inclusion of nanoparticles into the base fluid produces an increase in the skin friction coefficient and the heat transfer rate at the surface. Moreover, suction increases the surface shear stress and in consequence increases the heat transfer rate at the fluid-solid interface. Springer 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30059/1/Stagnation%20point%20flow%20toward%20a%20stretching.pdf Bachok @ Lati, Norfifah and Ishak, Anuar and Nazar, Roslinda and Senu, Norazak (2013) Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid. Boundary Value Problems, 2013. art. no. 39. pp. 1-10. ISSN 1687-2770 http://link.springer.com/journal/13661/2013/1/page/9 10.1186/1687-2770-2013-39 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description An analysis is carried out to study the heat transfer characteristics of steady two-dimensional stagnation-point flow of a copper (Cu)-water nanofluid over a permeable stretching/shrinking sheet. The stretching/shrinking velocity and the ambient fluid velocity are assumed to vary linearly with the distance from the stagnation-point. Results for the skin friction coefficient, local Nusselt number, velocity as well as the temperature profiles are presented for different values of the governing parameters. It is found that dual solutions exist for the shrinking case, while for the stretching case, the solution is unique. The results indicate that the inclusion of nanoparticles into the base fluid produces an increase in the skin friction coefficient and the heat transfer rate at the surface. Moreover, suction increases the surface shear stress and in consequence increases the heat transfer rate at the fluid-solid interface.
format Article
author Bachok @ Lati, Norfifah
Ishak, Anuar
Nazar, Roslinda
Senu, Norazak
spellingShingle Bachok @ Lati, Norfifah
Ishak, Anuar
Nazar, Roslinda
Senu, Norazak
Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
author_facet Bachok @ Lati, Norfifah
Ishak, Anuar
Nazar, Roslinda
Senu, Norazak
author_sort Bachok @ Lati, Norfifah
title Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
title_short Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
title_full Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
title_fullStr Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
title_full_unstemmed Stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
title_sort stagnation-point flow over a permeable stretching/shrinking sheet in a copper-water nanofluid
publisher Springer
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/30059/1/Stagnation%20point%20flow%20toward%20a%20stretching.pdf
http://psasir.upm.edu.my/id/eprint/30059/
http://link.springer.com/journal/13661/2013/1/page/9
_version_ 1643829944754634752
score 13.211869

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