Convective Heat Flux Characteristics of MHD Fluid with Oscillatory Suction and Variable Electroconductivity over a Vertical Plate Provoked by Radiation
P. O. Nwabuzor *
Univesity of Port-Harcourt, Choba, Port-Harcourt, Nigeria
A. T. Ngiangia
Univesity of Port-Harcourt, Choba, Port-Harcourt, Nigeria
*Author to whom correspondence should be addressed.
Abstract
This article presents the effects of thermal radiation, Soret and Duffour terms on MHD fluid (which is the study of an electrically conducting fluid and its interaction with magnetic field) with oscillatory suction over a vertical plate. The solution of the dimensionless equation is obtained analytically using collocation weighted residual method. Using the wolfram 9 software, graphs were plotted to obtain the effects of the various material parameters on the velocity, temperature and concentration field within the boundary layers and they are separately discussed. The suction term and the Dufour parameter improves the temperature of the fluid but it receives and opposition from the Prandtl parameter. Also, the suction term, Soret and the Schmedit all improves the concentration of the fluid. Finally the effects of material parameters on the shear stress, Nusselt number and Sherwood are also presented graphically. In addition the results obtained showed that the material parameters have significant influence on the flow, heat and mass transfer.
Keywords: Soret, Dufour, heat flux, collocation weighted residual method, MHD