Heat and Mass Transfer in a Hydromagnetic Nanofluid Past a Non-Linear Stretching Surface with Thermal Radiation

2015 ◽  
Vol 4 (2) ◽  
pp. 230-238 ◽  
Author(s):  
Poulomi De ◽  
Hiranmoy Mondal ◽  
Uttam Kumar Bera
Author(s):  
S. M. M. EL-Kabeir ◽  
Ali Chamkha ◽  
A. M. Rashad

The thermal-diffusion and diffusion-thermo effects on heat and mass transfer by magnetohydrodynamic (MHD) mixed convection stagnation-point flow of a power-law non-Newtonian fluid towards a stretching surface in the presence of a magnetic field, thermal radiation and homogenous chemical reaction effects have been studied. A suitable set of dimensionless variables is used and similar equations governing the problem are obtained. The resulting equations have the property that they reduce to various special cases previously considered in the literature. An adequate implicit tri-diagonal finite-difference scheme is employed for the numerical solution of the obtained equations. Various comparisons with previously published work are performed and the results are found to be in excellent agreement. Representative results for the velocity, temperature, and concentration profiles as well as the local skin-friction coefficient, the local Nusselt number and the local Sherwood number illustrating the influence of the magnetic parameter, power-law fluid index, mixed convection parameter, concentration to thermal buoyancy ratio, thermal radiation, chemical reaction, and Dufour and Soret numbers are presented and discussed.


2015 ◽  
Vol 127 ◽  
pp. 1315-1322 ◽  
Author(s):  
Manjula Jonnadula ◽  
Padma Polarapu ◽  
Gnaneswara Reddy M ◽  
Venakateswarlu. M

2008 ◽  
Vol 2008 ◽  
pp. 1-12 ◽  
Author(s):  
S. Shateyi

This study sought to investigate thermal radiation and buoyancy effects on heat and mass transfer over a semi-infinite stretching surface with suction and blowing. Appropriate transformations were employed to transform the governing differential equations to nonsimilar form. The transformed equations were solved numerically by an efficient implicit, iterative finite-difference scheme. A parametric study illustrating the influence of wall suction or injection, radiation, Schmidt number and Grashof number on the fluid velocity, temperature and concentration is conducted. We conclude from the study that the flow is appreciably influenced by thermal radiation, Schmidt number, as well as fluid injection or suction.


Sign in / Sign up

Export Citation Format

Share Document