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
相关论文
共 50 条
  • [31] Mixed convection flow over a horizontal circular cylinder with constant heat flux embedded in a porous medium filled by a nanofluid: Buongiorno-Darcy model
    Tham, Leony
    Nazar, Roslinda
    Pop, Ioan
    HEAT AND MASS TRANSFER, 2016, 52 (09) : 1983 - 1991
  • [32] Mixed convection boundary-layer flow past a horizontal circular cylinder embedded in a porous medium filled with a nanofluid under convective boundary condition
    Rashad, A. M.
    Chamkha, A. J.
    Modather, M.
    COMPUTERS & FLUIDS, 2013, 86 : 380 - 388
  • [33] Mixed convection over an inclined wavy surface embedded in a nanofluid saturated porous medium
    Srinivasacharya, D.
    Kumar, P. Vijay
    INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2015, 25 (08) : 1774 - 1792
  • [34] Mixed Convection Flow of Viscoelastic Fluid over a Sphere under Convective Boundary Condition Embedded in Porous Medium
    Kasim, A.R.M.
    Jiann, L.Y.
    Rawi, N.A.
    Ali, A.
    Shafie, S.
    Defect and Diffusion Forum, 2015, 362 : 67 - 75
  • [35] MHD Mixed Convection Flow of Viscoelastic Fluid Embedded in Porous Medium
    Kasim, A. R. M.
    Mohammad, N. F.
    Aurangzaib
    Shafie, S.
    MALAYSIAN JOURNAL OF FUNDAMENTAL AND APPLIED SCIENCES, 2013, 9 (01): : 22 - 27
  • [36] Natural Convection Flow of a Nanofluid in an Inclined Square Enclosure Partially Filled with a Porous Medium
    Alsabery, A. I.
    Chamkha, A. J.
    Saleh, H.
    Hashim, I.
    SCIENTIFIC REPORTS, 2017, 7
  • [37] Natural Convection Flow of a Nanofluid in an Inclined Square Enclosure Partially Filled with a Porous Medium
    A. I. Alsabery
    A. J. Chamkha
    H. Saleh
    I. Hashim
    Scientific Reports, 7
  • [38] FREE CONVECTION FLOW IN A DUCT FILLED WITH NANOFLUID AND SATURATED WITH POROUS MEDIUM: VARIABLE PROPERTIES
    Umavathi, J. C.
    Sasso, Maurizio
    JOURNAL OF POROUS MEDIA, 2018, 21 (01) : 1 - 33
  • [39] Mixed convection boundary layer flow from a vertical flat plate embedded in a porous medium filled with nanofluids
    Ahmad, Syakila
    Pop, Ioan
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2010, 37 (08) : 987 - 991
  • [40] Mixed Convection Flow of Non-Newtonian Fluid from Vertical Surface Saturated in a Porous Medium Filled with a Nanofluid
    Rashad, A. M.
    Chamkha, A. J.
    Abdou, M. M. M.
    JOURNAL OF APPLIED FLUID MECHANICS, 2013, 6 (02) : 301 - 309
12345