Unsteady magnetohydrodynamic flow of generalized second grade fluid through porous medium with Hall effects on heat and mass transfer

2020 ◽  
Vol 32 (11) ◽  
pp. 113105
Author(s):  
Xiaoyun Jiang ◽  
Hui Zhang ◽  
Shaowei Wang
2015 ◽  
Vol 20 (2) ◽  
pp. 239-255 ◽  
Author(s):  
I.G. Baoku ◽  
Y.S. Onifade ◽  
L.O. Adebayo ◽  
K.M. Yusuff

Abstract The investigation deals with the combined heat and mass transfer in a mixed convection boundary layer flow over a stretching vertical surface in a porous medium filled with a viscoelastic second grade fluid. The partial differential equations governing the model have been transformed by a similarity transformation and the system of coupled-ordinary differential equations is solved by employing the shooting method with the fifth-order Runge-Kutta-Fehlberg iteration technique. Effects of various values of physical parameters embedded in the flow model on the dimensionless velocity, temperature and concentration distributions are discussed and shown with the aid of graphs. Numerical values of physical quantities, such as the local skin-coefficient, local Nusselt number and local Sherwood number are presented in a tabular form. It is observed that the boundary layer fluid velocity increases as the second grade parameter, mixed convection parameter and Prandtl number increase.


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