Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet

Mixed convection boundary layer caused by time-dependent velocity and the surface temperature in the two-dimensional unsteady stagnation point flow of an in-compressible viscous fluid over a stretching vertical sheet is studied. The transformed nonlinear boundary layer equations are solved numerical...

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Main Authors: Nik Long, Nik Mohd Asri, Koo, Lee Feng, Wong, Tze Jin, Suali, Melini
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2013
Online Access:http://psasir.upm.edu.my/id/eprint/30698/1/195360.pdf
http://psasir.upm.edu.my/id/eprint/30698/
http://www.hindawi.com/journals/mpe/2013/195360/
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spelling my.upm.eprints.306982019-10-31T03:22:40Z http://psasir.upm.edu.my/id/eprint/30698/ Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet Nik Long, Nik Mohd Asri Koo, Lee Feng Wong, Tze Jin Suali, Melini Mixed convection boundary layer caused by time-dependent velocity and the surface temperature in the two-dimensional unsteady stagnation point flow of an in-compressible viscous fluid over a stretching vertical sheet is studied. The transformed nonlinear boundary layer equations are solved numerically using the shooting technique in cooperation with Runge-Kutta-Fehlberg (RKF) method. Different step sizes are used ranging from 0.0001 to 1. Numerical results for the skin friction coefficient and local Nusselt number are presented for both assisting and opposing flows. It is found that the dual solutions exist for the opposing flow, whereas the solution is unique for the assisting flow. Important features of the flow characteristics are displayed graphically. Comparison with the existing results for the steady case show an excellent agreement. Hindawi Publishing Corporation 2013 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/30698/1/195360.pdf Nik Long, Nik Mohd Asri and Koo, Lee Feng and Wong, Tze Jin and Suali, Melini (2013) Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet. Mathematical Problems in Engineering, 2013. art. no. 195360. pp. 1-10. ISSN 1024-123X; ESSN: 1563-5147 http://www.hindawi.com/journals/mpe/2013/195360/ 10.1155/2013/195360
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
description Mixed convection boundary layer caused by time-dependent velocity and the surface temperature in the two-dimensional unsteady stagnation point flow of an in-compressible viscous fluid over a stretching vertical sheet is studied. The transformed nonlinear boundary layer equations are solved numerically using the shooting technique in cooperation with Runge-Kutta-Fehlberg (RKF) method. Different step sizes are used ranging from 0.0001 to 1. Numerical results for the skin friction coefficient and local Nusselt number are presented for both assisting and opposing flows. It is found that the dual solutions exist for the opposing flow, whereas the solution is unique for the assisting flow. Important features of the flow characteristics are displayed graphically. Comparison with the existing results for the steady case show an excellent agreement.
format Article
author Nik Long, Nik Mohd Asri
Koo, Lee Feng
Wong, Tze Jin
Suali, Melini
spellingShingle Nik Long, Nik Mohd Asri
Koo, Lee Feng
Wong, Tze Jin
Suali, Melini
Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
author_facet Nik Long, Nik Mohd Asri
Koo, Lee Feng
Wong, Tze Jin
Suali, Melini
author_sort Nik Long, Nik Mohd Asri
title Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
title_short Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
title_full Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
title_fullStr Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
title_full_unstemmed Mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
title_sort mixed convection boundary layers with prescribed temperature in the unsteady stagnation point flow toward a stretching vertical sheet
publisher Hindawi Publishing Corporation
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/30698/1/195360.pdf
http://psasir.upm.edu.my/id/eprint/30698/
http://www.hindawi.com/journals/mpe/2013/195360/
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score 13.18916