MHD effects of oriented magnetic field on radiative Casson nanofluid flow over a stretchable surface

In various areas such as geophysics, petroleum engineering, agriculture, metal casting, metal working, and cooling of atomic reactors, magnetohydrodynamic (MHD) forces on fluid flow over a stretched surface play a crucial role. This study investigates heat transfer and MHD phenomena in the flow of a Casson fluid with ternary nanoparticles under the influence of an aligned magnetic field and the slip effect. The energy equation takes into account radiation, convection, and a uniform source/sink of heat. Additionally, the relationship between the aligned magnetic field and the slip velocity is investigated. Through appropriate transformations, the governing equations with their associated boundary conditions are transformed to a set of ordinary differential equations, which are solved numerically. Key quantities such as temperature, friction drag, Nusselt number, and fluid velocity are investigated. The results show that the magnetic field induces a resistive force that slows down the motion of the fluid. It is also found that increases in the radiation parameter and Biot number lead to significant increases in heat transfer. This study provides an enhanced understanding of thermal and fluid dynamics with relevance to complex industrial and other engineering scenarios.