Conjugate Effects of Heat and Mass Transfer on Natural Convection Flow along an Isothermal Sphere with Radiation Heat Loss  

作　　者：Salina Aktar Mahmuda Binte Mostafa Ruma Md. Abdul Alim 

机构地区：[1]Department of Engineering & Technology, Eastern University, Dhaka, Bangladesh [2]Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh [3]Department of Natural Science, Stamford University, Stamford, Bangladesh

出　　处：《Open Journal of Fluid Dynamics》2013年第2期86-94,共9页流体动力学（英文）

摘　　要：Conjugate effects heat and mass transfer on free convection flow across an isothermal sphere immersed in a viscous incompressible fluid in the presence of species concentration with radiation heat loss has been investigated in this paper. The governing boundary layer equations are first transformed into a non-dimensional form and the resulting nonlinear systems of partial differential equations are then solved numerically using Finite—difference method with Keller-box Scheme. We have focused our attention on the evaluation velocity profiles, temperature profiles and species concentration profiles of the fluid as well as the local skin friction coefficient, local heat transfer rate and local species concentration transfer rate for a wide range of radiation parameter Rd, Schmidt number Sc and Prandlt number Pr.Conjugate effects heat and mass transfer on free convection flow across an isothermal sphere immersed in a viscous incompressible fluid in the presence of species concentration with radiation heat loss has been investigated in this paper. The governing boundary layer equations are first transformed into a non-dimensional form and the resulting nonlinear systems of partial differential equations are then solved numerically using Finite—difference method with Keller-box Scheme. We have focused our attention on the evaluation velocity profiles, temperature profiles and species concentration profiles of the fluid as well as the local skin friction coefficient, local heat transfer rate and local species concentration transfer rate for a wide range of radiation parameter Rd, Schmidt number Sc and Prandlt number Pr.

关 键 词：NATURAL Convection RADIATION Heat Loss SKIN-FRICTION Nusselt NUMBER SCHMIDT NUMBER Prandlt NUMBER 

分 类 号：O3[理学—力学]