MHD stagnation point flow of a micropolar fluid towards a heated surface

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MHD stagnation point flow of a micropolar fluid towards a heated surface水利论文?5A fZQ|;_

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Abstract:The problem of two dimensional stagnation point flow of an electrically conducting micropolar fluid impinging normally on a heated surface in the presence of a uniform transverse magnetic field is analyzed. The governing continuity, momentum,angular momentum, and heat equations together with the associated boundary conditions are reduced to dimensionless form using suitable similarity transformations. The reduced self similar non-linear equations are then solved numerically by an algorithm based on the finite difference discretization. The results are further refined by Richardson's extrapolation. The effects of the magnetic parameter, the micropolar parameters, and the Prandtl number on the flow and temperature fields are predicted in tabular and graphical forms to show the important features of the solution. The study shows that the velocity and thermal boundary layers become thinner as the magnetic parameter is increased. The micropolar fluids display more reduction in shear stress as well as heat transfer rate than that exhibited by Newtonian fluids, which is beneficial in the flow and thermal control of polymeric processing.水利论文:D4cuH0M k

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Author:

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M.ASHRAF M.M.ASHRAF水利论文bSqA8@1H

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作者单位:

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Centre for Advanced Studies in Pure and Applied Mathematics, Bahauddin Zakariya University, Multan 60000, Pakistan

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T3~8P!pn.q VT$|}{T)]-{0应用数学和力学(英文版)

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Journal:水利论文.c:w(Lk ~V@

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APPLIED MATHEMATICS AND MECHANICS

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#b8t#F [y.y9T l02011, 32(1)

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Keywords:水利论文0@%dGO1@:IqNB

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magnetohydrodynamics (MHD)水利论文DW_S N-P0P

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stagnation flow

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'lR2c,rZ$Q.Va0micropolar fluids

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finite differences

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similarity transformations水利论文c0Z g&V*`g'n-_

3WJ/NV)`z0boundary layer

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机标关键词:

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flow stagnation point boundary conditions temperature fields micropolar fluids finite difference Newtonian fluids two dimensional boundary layers Prandtl number magnetic field heat equations heat transfer shear stress self similar velocity features results display control

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