Multiple slips effects on MHD SA-Al2O3 and SA-Cu non-Newtonian nanofluids flow over a stretching cylinder in porous medium with radiation and chemical reaction

被引:77
作者
Tlili, I. [1 ]
Khan, W. A. [1 ]
Khan, I. [2 ]
机构
[1] Majmaah Univ, Dept Mech & Ind Engn, Coll Engn, Majmaah 11952, Saudi Arabia
[2] Majmaah Univ, Dept Basic Sci, Coll Engn, Majmaah 11952, Saudi Arabia
关键词
SA-NaAlg-based non-Newtonian nanofluid; SWNCTs and MWCNTs; Thermal radiation; Chemical reaction; MHD and porosity; Multiple slips; NONLINEAR CONVECTIVE FLOW; BOUNDARY-LAYER-FLOW; HEAT-TRANSFER; CASSON NANOFLUID; VISCOUS DISSIPATION; NATURAL-CONVECTION; SODIUM ALGINATE; FLUID-FLOW; SHEET;
D O I
10.1016/j.rinp.2017.12.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The purpose of this communication is to examine the collective influence of velocity, and thermal slips on magnetohydrodyanmics (MHD) SA-Al2O3 and SA-Cu non-Newtonian nanofluids flow over a stretching cylinder in porous medium together with thermal radiation and chemical reaction effects. Sodium Alginate (SA-NaAlg) is taken as non-Newtonian base fluid. Two types of nanoparticles alumina or aluminum oxide (Al2O3) and copper (Cu) are suspended in sodium alginate (SA) which is taken as base fluid, an example of non-Newtonian Casson fluid. The formulated nonlinear partial differential equations with auxiliary boundary conditions are transformed into non-dimensional form by applying suitable similarity transformations. The resulting dimensionless problem is solved numerically using shooting and fourth order Runge-Kutta method. The impacts of various thermophysical parameters on local skin-friction, local Nusselt number, temperature and velocity are analyzed through graphs as well as in tabular form and discussed in detail. A comparison between SA-Al2O3 and SA-Cu nanofluids is clearly shown and in limiting sense the present results are compared with published results from literature. The results show that with magnetic parameter, skin-friction and Nusselt number both decreased, and Nusselt numbers are the highest in case of Al2O3 than Cu nanoparticles. (C) 2017 The Authors. Published by Elsevier B.V.
引用
收藏
页码:213 / 222
页数:10
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