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Three dimensional MHD Casson fluid flow over a stretching surface with variable thermal conductivity

Ganga B., Charles S., Abdul Hakeem A. K., Nadeem S.

Journal of Applied Mathematics and Computational Mechanics

2021

Vol. 20, nr 1

25--36

The three-dimensional magnetohydrodynamic (MHD) boundary layer flow of a Casson fluid over a stretching surface set into a porous medium with variable thermal conductivity and heat generation/absorption has been researched. Conservation laws of mass, momentum and energy are changed into ordinary differential equations, which are numerically dealt with by applying the fourth order Runge-Kutta integration scheme in relationship with shooting procedure. The dimensionless velocity, temperature, skin friction coefficient and the local Nusselt number inside the boundary layer are processed and examined through tables and illustrations for various physical parameters. The numerical outcomes obtained for the specific case are sensible in great concurrence with the existing results. Results indicate that momentum boundary layer reduces for the Hartman number and Casson fluid parameter. Temperature is found as an enlightened function for the heat generation and thermal conductivity parameter.

Three-dimensional flow over a stretching surface with chemical reaction and suction/injection

Saad A. R., Elbashbeshy E. M. A., Emam T. G., Abdel-Wahed M. S.

International Journal of Applied Mechanics and Engineering

2012

Vol. 17, no. 1

203-212

The effects of suction/injection and chemical reaction on mass transfer characteristics over a stretching surface subjected to three dimensional flows are studied. The governing boundary layer equations are transformed to ordinary differential equations containing the suction/injection parameter, stretching ratio parameter, concentration parameter, chemical reaction parameter, and Schmidt number. These equations are solved numerically. Concentration profiles are computed and discussed in details for various values of the different parameters.