The effects of MHD and temperature dependent viscosity on the flow of non-Newtonian nanofluid in a pipe: Analytical solutions

被引:626
作者
Ellahi, R. [1 ,2 ]
机构
[1] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA
[2] IIUI, FBAS, Dept Math & Stat, Islamabad 44000, Pakistan
关键词
Non-Newtonian nanofluid; Variable viscosities; MHD; Heat transfer analysis; Analytical solutions; HOMOTOPY ANALYSIS METHOD; 3RD GRADE FLUID; DIFFERENTIAL-EQUATIONS;
D O I
10.1016/j.apm.2012.04.004
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This article examines the magnetohydrodynamic (MHD) flow of non-Newtonian nanofluid in a pipe. The temperature of the pipe is assumed to be higher than the temperature of the fluid. In particular two temperature dependent viscosity models, have been considered. The nonlinear partial differential equations along with the boundary conditions are first cast into a dimensionless form and then the equations are solved by homotopy analysis method (HAM). Explicit analytical expressions for the velocity field, the temperature distribution and nano concentration have been derived analytically. The effects of various physical parameters on velocity, temperature and nano concentration are discussed by using graphical approach. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:1451 / 1467
页数:17
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