TITLE:
Analysis of Heat and Mass Transfer in MHD Free Convection with Chemical Reaction Effects on a Moving Vertical Porous Plate
AUTHORS:
Toha François Lihonou, Abdelghani Laouer, Kalil Pierre Mathos, Faya Maurice Yombouno
KEYWORDS:
MHD Free Convection, Moving Vertical Plate, BVP4C Technical, Injection/Suction
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.15 No.2,
June
6,
2025
ABSTRACT: This study focuses on the numerical investigation of fluid flow, heat transfer, and free MHD convection through a semi-infinite vertical porous plate, considering the effects of chemical reactions. By analyzing the boundary layer, a flow model was developed to represent the governing equations for movement, energy, and concentration, which are time-independent. These equations are expressed as a dimensionless nonlinear system and mathematically transformed into nonlinear ordinary differential equations (ODEs). The ODEs of the model are solved using the BVP4C method within the Matlab R2024B package. Numerical calculations were performed, and the results were analyzed to explore the effects of various parameters such as the magnetic parameter, the permeability of the porous medium, the Eckert number, the Grashof number, the modified Grashof number, the Schmidt number, the heat source parameter, the Prandlt number, the Dufour number, the blowing/suction velocity, the chemical reaction parameter and the Soret number on the velocity, temperature, and concentration profiles, as well as the skin friction coefficient, Nusselt number, and Sherwood number. The study reveals that an increase in magnetic parameters reduces the velocity profiles and increases the temperature and concentration profiles. An increase in the chemical reaction rate decreases the velocity and concentration distributions but increases the temperature profile. Higher injection velocities enhance the profiles, while suction reduces them.