Consequence of the direction of uniform horizontal magnetic field on nanolubricant flow over a permeable rotating disk

Abstract

In order to reduce friction between moving elements in automobiles’ heat exchange systems, SAE50 is a vital lubricant. Additionally, by preventing corrosion and abrasion of moving parts, it increases durability, reduces fuel consumption, and improves efficiency. SAE50 has a low thermal conductivity, despite this. The current inquiry is concentrated on how Zinc Oxide-Society of Automotive Engineers 50 nanolubricant flow (ZnO-SAE50 nanolubricant) through a permeable rotating disk is affected by a uniform horizontal magnetic field (UHMF) and thermal radiation. By employing the appropriate transformations, the governing modeled equations are changed into ordinary differential equations (ODEs). Then the ODEs are solved numerically by combining the Runge–Kutta-fourth-and-fifth Fehlberg’s (RKF-45) order and shooting tactic. The findings show that radiation is crucial in enhancing heat transfer for the flow of ZnO-SAE50 nanolubricant over the disk surface. With higher heat source/sink parameter values, it is discovered that the temperature boundary layer produces energy, causing thermal profiles to rise. Further in this scenario, it is found that the increase in magnetic field decreases the fluid flow gradually at rate of 5–10%.