Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet.
The unsteady boundary layer flow of a nanofluid over a permeable stretching/shrinking sheet is theoretically studied. The governing partial differential equations are transformed into ordinary ones using a similarity transformation, before being solved numerically. The results are obtained for the...
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/25238/ http://psasir.upm.edu.my/id/eprint/25238/1/Unsteady%20boundary.pdf |
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| author | Bachok @ Lati, Norfifah Ishak, Anuar Pop, Ioan |
| author_facet | Bachok @ Lati, Norfifah Ishak, Anuar Pop, Ioan |
| author_sort | Bachok @ Lati, Norfifah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The unsteady boundary layer flow of a nanofluid over a permeable stretching/shrinking sheet is theoretically
studied. The governing partial differential equations are transformed into ordinary ones using a similarity transformation, before being solved numerically. The results are obtained for the skin friction coefficient, the local Nusselt number and the local Sherwood number as well as the velocity, temperature and the nanoparticle fraction profiles for some values of the governing parameters, namely, the unsteadiness parameter, the mass suction parameter, the Brownian motion parameter, the thermophoresis
parameter, Prandtl number, Lewis number and the stretching/shrinking parameter. It is found that dual
solutions exist for both stretching and shrinking cases. The results also indicate that both unsteadiness
and mass suction widen the range of the stretching/shrinking parameter for which the solution exists. |
| first_indexed | 2025-11-15T08:43:53Z |
| format | Article |
| id | upm-25238 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:43:53Z |
| publishDate | 2012 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-252382015-08-26T03:16:35Z http://psasir.upm.edu.my/id/eprint/25238/ Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. Bachok @ Lati, Norfifah Ishak, Anuar Pop, Ioan The unsteady boundary layer flow of a nanofluid over a permeable stretching/shrinking sheet is theoretically studied. The governing partial differential equations are transformed into ordinary ones using a similarity transformation, before being solved numerically. The results are obtained for the skin friction coefficient, the local Nusselt number and the local Sherwood number as well as the velocity, temperature and the nanoparticle fraction profiles for some values of the governing parameters, namely, the unsteadiness parameter, the mass suction parameter, the Brownian motion parameter, the thermophoresis parameter, Prandtl number, Lewis number and the stretching/shrinking parameter. It is found that dual solutions exist for both stretching and shrinking cases. The results also indicate that both unsteadiness and mass suction widen the range of the stretching/shrinking parameter for which the solution exists. Elsevier 2012 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/25238/1/Unsteady%20boundary.pdf Bachok @ Lati, Norfifah and Ishak, Anuar and Pop, Ioan (2012) Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. International Journal of Heat and Mass Transfer, 55 (7-8). pp. 2102-2109. ISSN 0017-9310 10.1016/j.ijheatmasstransfer.2011.12.013 English |
| spellingShingle | Bachok @ Lati, Norfifah Ishak, Anuar Pop, Ioan Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title | Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title_full | Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title_fullStr | Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title_full_unstemmed | Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title_short | Unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| title_sort | unsteady boundary-layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet. |
| url | http://psasir.upm.edu.my/id/eprint/25238/ http://psasir.upm.edu.my/id/eprint/25238/ http://psasir.upm.edu.my/id/eprint/25238/1/Unsteady%20boundary.pdf |