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Numerical study for MHD stagnation-point flow of a micropolar nanofluid towards a stretching sheet

Anwar, M. I. and Shafie, Sharidan and Hayat, T. and Shehzad, S. A. and Salleh, M. Z. (2017) Numerical study for MHD stagnation-point flow of a micropolar nanofluid towards a stretching sheet. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 39 (1). pp. 89-100. ISSN 1678-5878

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Official URL: http://dx.doi.org10.1007/s40430-016-0610-y

Abstract

In this paper, we investigated the magnetohydrodynamic (MHD) stagnation-point flow of micropolar nanofluid over a stretching sheet. A uniform magnetic field is applied normal to the flow. Nonlinear micropolar nanofluid problem in the presence of the strong concentration of microelements is modeled and then solved by numerical techniques. A parametric study of the involved parameters in the presence of spin gradient viscosity is conducted, and representative set of numerical results is illustrated in the graphical and tabular forms. The complete formulation of the Keller-box method for the considered flow problem is given, and a comparison of the obtained results is performed with the previous published results. The comparison shows that our present results have an excellent match with the previous results in a limiting case. We found that the non-dimensional temperature and its associated thermal boundary layer thickness are enhanced when we use the larger values of thermophoresis and Brownian motion parameter. The non-dimensional concentration is higher for larger thermophoresis parameter but smaller for higher Brownian motion parameter. It is also observed that the smaller values of Lewis number correspond to higher non-dimensional concentration and its associated boundary layer thickness.

Item Type:Article
Additional Information:RADIS System Ref No:PB/2016/03910
Uncontrolled Keywords:stagnation-point flow, stretching sheet
Subjects:Q Science
Divisions:Science
ID Code:66531
Deposited By: Fazli Masari
Deposited On:08 Oct 2017 11:16
Last Modified:08 Oct 2017 11:16

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