Efect of double dispersion on non-Darcy mixed convective flow over vertical surface embedded in porous medium  

作　　者：A. A. AFIFY N. S. ELGAZERY 

机构地区：[1]Department of Mathematics, Faculty of Science, Helwan University,Cairo 11795, Egypt [2]Department of Mathematics, Faculty of Education, Ain Shams University,Cairo 11234, Egypt

出　　处：《Applied Mathematics and Mechanics(English Edition)》2013年第10期1247-1262,共16页应用数学和力学（英文版）

摘　　要：A numerical study of a non-Darcy mixed convective heat and mass transfer flow over a vertical surface embedded in a dispersion, melting, and thermal radiation is porous medium under the effects of double investigated. The set of governing boundary layer equations and the boundary conditions is transformed into a set of coupled nonlinear ordinary differential equations with the relevant boundary conditions. The transformed equations are solved numerically by using the Chebyshev pseudospectral method. Comparisons of the present results with the existing results in the literature are made, and good agreement is found. Numerical results for the velocity, temperature, concentration profiles, and local Nusselt and Sherwood numbers are discussed for various values of physical parameters.A numerical study of a non-Darcy mixed convective heat and mass transfer flow over a vertical surface embedded in a dispersion, melting, and thermal radiation is porous medium under the effects of double investigated. The set of governing boundary layer equations and the boundary conditions is transformed into a set of coupled nonlinear ordinary differential equations with the relevant boundary conditions. The transformed equations are solved numerically by using the Chebyshev pseudospectral method. Comparisons of the present results with the existing results in the literature are made, and good agreement is found. Numerical results for the velocity, temperature, concentration profiles, and local Nusselt and Sherwood numbers are discussed for various values of physical parameters.

关 键 词：mixed convection non-Darcy flow porous medium double dispersion melting thermal radiation Chebyshev pseudospectral method 

分 类 号：O357.3[理学—流体力学]