Double diffusive convection and cross diffusion effects on Casson fluid over a Lorentz force driven Riga plate in a porous medium with heat sink: An analytical approach

Abstract

The present research focuses on flow, heat and mass transfer properties in the context of their applications. The importance of Casson liquid flow on an electromagnetic plate could be seen in the field of engineering. The application of these materials in biological rheological models has piqued the consideration of many researchers. Having such substantial interest in the flow of Casson liquid, this analytical study emphasizes the heat sink and Lorentz force phenomena on the Casson liquid flow over an inclined Riga plate by considering Soret and Dufour effects. Similarity variables are capitalized for deriving ordinary differential equations (ODEs) from partial differential equations (PDEs). Following that, the approximate solutions are obtained using the regular perturbation method. The impact of flow on associated distributions is shown graphically. Variations in engineering parameters such as wall shear stress, rate of heat, and mass transfer on the surface are also monitored. Results reveal that the rising values of heat sink parameter declines the velocity profile. But, increasing values of modified Hartmann number improves the velocity profile. The growing values of heat sink reduce the heat transfer. However, heat transfer is improved by the upsurge in the values of radiation parameter. Furthermore, the increasing values of Soret number decline the rate of mass transfer.