Mixed Convection Flow about a Solid Sphere Embedded in a Porous Medium Filled with a Nanofluid

被引：0
|
作者：
Tham, Leony [2 ]
Nazar, Roslinda [1 ]
机构：
[1] Univ Kebangsaan Malaysia, Fak Sains & Teknol, Pusat Pengajian Sains Matemat, Ukm Bangi 43600, Selangor, Malaysia
[2] Univ Malaysia Kelantan, Fak Ind & Asas Tani, Jeli 17600, Kelantan, Malaysia
来源：
SAINS MALAYSIANA | 2012年 / 41卷 / 12期
关键词：
Boundary layer; mixed convection; nanofluid; porous medium; solid sphere; HEAT-TRANSFER ENHANCEMENT; PERMEABLE STRETCHING/SHRINKING SHEET; BOUNDARY-LAYER-FLOW; VISCOUS-FLOW; CYLINDER;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A steady laminar mixed convection boundary layer flow about an isothermal solid sphere embedded in a porous medium filled with a nanofluid has been studied for both cases of assisting and opposing flows. The transformed boundary layer equations were solved numerically using an implicit finite-difference scheme. Three different types of nanoparticles, namely Cu, Al2O3 and TiO2 in water-based fluid were considered. Numerical solutions were obtained for the skin friction coefficient, the velocity and temperature profiles. The features of the flow and heat transfer characteristics for various values of the nanoparticle volume fraction and the mixed convection parameters were analyzed and discussed.
引用
收藏
页码：1643 / 1649
页数：7
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