Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet

The aim of this paper is to analyze two-dimensional unsteady flow of a viscous incompressible fluid about a stagnation point on a permeable stretching sheet in presence of a time dependent free stream velocity. Fluid is considered in the porous media with radiation effect. The Rosseland approximatio...

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Main Authors: Phool SINGH, Anoop KUMAR, Nagender Singh TOMER, Deepa SINHA
Format: Article
Language:English
Published: Walailak University 2013-12-01
Series:Walailak Journal of Science and Technology
Subjects:
Online Access:http://wjst.wu.ac.th/index.php/wjst/article/view/646
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author Phool SINGH
Anoop KUMAR
Nagender Singh TOMER
Deepa SINHA
author_facet Phool SINGH
Anoop KUMAR
Nagender Singh TOMER
Deepa SINHA
author_sort Phool SINGH
collection DOAJ
description The aim of this paper is to analyze two-dimensional unsteady flow of a viscous incompressible fluid about a stagnation point on a permeable stretching sheet in presence of a time dependent free stream velocity. Fluid is considered in the porous media with radiation effect. The Rosseland approximation is used to model the radiative heat transfer. Using a time-dependent stream function, partial differential equations corresponding to the momentum and energy equations are converted into non-linear ordinary differential equations. The numerical solutions of these equations are obtained by using the Runge-Kutta Fehlberg method with the help of shooting technique. In the present work, the effect of porosity parameter, radiation parameter and suction parameter on flow and heat transfer characteristics are discussed. The skin-friction coefficient and the Nusselt number at the sheet are computed and discussed. The results reported in the paper are in good agreement with published work in literature by other researchers. doi:10.14456/WJST.2014.13
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spelling doaj.art-d92c15e46078464e9ae76bda7d201a5d2022-12-21T21:20:57ZengWalailak UniversityWalailak Journal of Science and Technology1686-39332228-835X2013-12-0111710.2004/wjst.v11i7.646389Analysis of Porosity Effects on Unsteady Stretching Permeable SheetPhool SINGH0Anoop KUMAR1Nagender Singh TOMER2Deepa SINHA3ITM University, Gurgaon, HaryanaGITM, Bilaspur, Gurgaon, HaryanaGCFGM, Adampur, Hisar, HaryanaSouth Asian University, New DelhiThe aim of this paper is to analyze two-dimensional unsteady flow of a viscous incompressible fluid about a stagnation point on a permeable stretching sheet in presence of a time dependent free stream velocity. Fluid is considered in the porous media with radiation effect. The Rosseland approximation is used to model the radiative heat transfer. Using a time-dependent stream function, partial differential equations corresponding to the momentum and energy equations are converted into non-linear ordinary differential equations. The numerical solutions of these equations are obtained by using the Runge-Kutta Fehlberg method with the help of shooting technique. In the present work, the effect of porosity parameter, radiation parameter and suction parameter on flow and heat transfer characteristics are discussed. The skin-friction coefficient and the Nusselt number at the sheet are computed and discussed. The results reported in the paper are in good agreement with published work in literature by other researchers. doi:10.14456/WJST.2014.13http://wjst.wu.ac.th/index.php/wjst/article/view/646Porous mediastretching sheetthermal radiationunsteady flow
spellingShingle Phool SINGH
Anoop KUMAR
Nagender Singh TOMER
Deepa SINHA
Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
Walailak Journal of Science and Technology
Porous media
stretching sheet
thermal radiation
unsteady flow
title Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
title_full Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
title_fullStr Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
title_full_unstemmed Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
title_short Analysis of Porosity Effects on Unsteady Stretching Permeable Sheet
title_sort analysis of porosity effects on unsteady stretching permeable sheet
topic Porous media
stretching sheet
thermal radiation
unsteady flow
url http://wjst.wu.ac.th/index.php/wjst/article/view/646
work_keys_str_mv AT phoolsingh analysisofporosityeffectsonunsteadystretchingpermeablesheet
AT anoopkumar analysisofporosityeffectsonunsteadystretchingpermeablesheet
AT nagendersinghtomer analysisofporosityeffectsonunsteadystretchingpermeablesheet
AT deepasinha analysisofporosityeffectsonunsteadystretchingpermeablesheet