Reddy, B. P.Sunzu, J.2020-03-202020-03-202016Reddy, B. P., & Sunzu, J. (2016). Thermal radiation and viscous dissipation effects on MHD heat and mass diffusion flow past a surface embedded in a porous medium with chemical reaction. International Journal of Mathematics and its Applications, 4 (2B), 91-103.http://hdl.handle.net/20.500.12661/2230Full Text Article Also available at: http://ijmaa.in/v4n2-b/91-103.pdfThe present paper deals with thermal radiation effects on the transient hydro-magnetic natural convection ow past a vertical plate embedded in a porous medium with mass discussion and fluctuating temperature about time at the plate, by taking account the heat due to viscous dissipation in the presence of chemical reaction. The governing equations are solved numerically by Ritz finite element method. The effects of various parameters entered into the equations of momentum, energy and concentration are evaluated numerically and plotted graphically, while numerical values of variations in skin-friction, rate of heat transfer in terms of Nusselt number at the plate are presented in tabular form. The results of the study are discussedenNatural convectionThermal radiationMHDChemical reactionPorous mediumViscous dissipationTemperatureRitz finite methodHydro-magnetic convectionIonized gasGeothermal reservoirsThermal insulationAerospace engineeringThermal radiationArticle