Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters

In this study, a steady, incompressible, and laminar-free convective flow of a two-dimensional electrically conducting viscoelastic fluid over a moving stretching surface through a porous medium is considered. The boundary-layer equations are derived by considering Boussinesq and boundary-layer appr...

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Main Authors: M. M. Rashidi, E. Momoniat, B. Rostami
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/780415
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author M. M. Rashidi
E. Momoniat
B. Rostami
author_facet M. M. Rashidi
E. Momoniat
B. Rostami
author_sort M. M. Rashidi
collection DOAJ
description In this study, a steady, incompressible, and laminar-free convective flow of a two-dimensional electrically conducting viscoelastic fluid over a moving stretching surface through a porous medium is considered. The boundary-layer equations are derived by considering Boussinesq and boundary-layer approximations. The nonlinear ordinary differential equations for the momentum and energy equations are obtained and solved analytically by using homotopy analysis method (HAM) with two auxiliary parameters for two classes of visco-elastic fluid (Walters’ liquid B and second-grade fluid). It is clear that by the use of second auxiliary parameter, the straight line region in ℏ-curve increases and the convergence accelerates. This research is performed by considering two different boundary conditions: (a) prescribed surface temperature (PST) and (b) prescribed heat flux (PHF). The effect of involved parameters on velocity and temperature is investigated.
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publishDate 2012-01-01
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series Journal of Applied Mathematics
spelling doaj-art-3da9204671394947b5fd4e0bd0a3c8a62025-02-03T01:22:38ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/780415780415Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary ParametersM. M. Rashidi0E. Momoniat1B. Rostami2Mechanical Engineering Department, Engineering Faculty of Bu-Ali Sina University, Hamedan, IranCentre for Differential Equations, Continuum Mechanics and Applications, School of Computational and Applied Mathematics, University of the Witwatersrand, Johannesburg, Private Bag 3, Wits 2050, South AfricaMechanical Engineering Department, Engineering Faculty of Bu-Ali Sina University, Hamedan, IranIn this study, a steady, incompressible, and laminar-free convective flow of a two-dimensional electrically conducting viscoelastic fluid over a moving stretching surface through a porous medium is considered. The boundary-layer equations are derived by considering Boussinesq and boundary-layer approximations. The nonlinear ordinary differential equations for the momentum and energy equations are obtained and solved analytically by using homotopy analysis method (HAM) with two auxiliary parameters for two classes of visco-elastic fluid (Walters’ liquid B and second-grade fluid). It is clear that by the use of second auxiliary parameter, the straight line region in ℏ-curve increases and the convergence accelerates. This research is performed by considering two different boundary conditions: (a) prescribed surface temperature (PST) and (b) prescribed heat flux (PHF). The effect of involved parameters on velocity and temperature is investigated.http://dx.doi.org/10.1155/2012/780415
spellingShingle M. M. Rashidi
E. Momoniat
B. Rostami
Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
Journal of Applied Mathematics
title Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
title_full Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
title_fullStr Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
title_full_unstemmed Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
title_short Analytic Approximate Solutions for MHD Boundary-Layer Viscoelastic Fluid Flow over Continuously Moving Stretching Surface by Homotopy Analysis Method with Two Auxiliary Parameters
title_sort analytic approximate solutions for mhd boundary layer viscoelastic fluid flow over continuously moving stretching surface by homotopy analysis method with two auxiliary parameters
url http://dx.doi.org/10.1155/2012/780415
work_keys_str_mv AT mmrashidi analyticapproximatesolutionsformhdboundarylayerviscoelasticfluidflowovercontinuouslymovingstretchingsurfacebyhomotopyanalysismethodwithtwoauxiliaryparameters
AT emomoniat analyticapproximatesolutionsformhdboundarylayerviscoelasticfluidflowovercontinuouslymovingstretchingsurfacebyhomotopyanalysismethodwithtwoauxiliaryparameters
AT brostami analyticapproximatesolutionsformhdboundarylayerviscoelasticfluidflowovercontinuouslymovingstretchingsurfacebyhomotopyanalysismethodwithtwoauxiliaryparameters