Novel physical applications of thermal radiation within the dissipative EMHD Casson fluid flow past a horizontal Riga plate

Abstract

In this study, we investigate the magnetohydrodynamic irreversibility generation that arises in weakly conducting dissipative Casson fluid flow due to the moving Riga plate in an electro-magnetohydrodynamic actuator. The consequences of Joule heating, chemical reaction, heat source, wall suction, and thermal radiation are also assessed in the fluid flow system. The electromagnetic properties of the Riga plate are studied by including the Grinberg term in the momentum equation. The fluid flow mechanism is expressed through the system of PDEs. The modeled PDEs are converted to a set of ODEs, by using the similarity substitution. The solutions are obtained numerically by using the bvp4c approach. It is found that the influence of the wall suction factor remarkably increases the thermodynamic irreversibility and heat transmission rate adjacent to the plate surface, while an opposite effect is observed as the strength of the magnetic field rises. The rising impact of Hartmann and Prandtl number reduces the temperature of the fluid. While the influence of Eckert number and thermal radiation boosts the temperature of Casson fluid. The concentration distribution has declined with growth in Schmidt number, Brownian motion, and chemically reactive factors. A comparative analysis is carried out to match current results with established data. A fine agreement is found amongst all the results that validates the accuracy and reliability of the solutions.