Thermal transmission in thin film coating of ternary hybrid nanofluid over a rotating disk under magnetic field and nonlinear radiative effects

Abstract

Applications for thin film flow are essential in many domains, including heat transfer systems, coating technologies, and microfluidics. Improvements in fields such as semiconductor manufacture, lubrication, and energy-efficient cooling are made possible by an understanding of thin film flow dynamics. Enhancing thermal conductivity by the use of nanofluids including nanoparticles such as MoS₂, CuO, and Al₂O₃ increases heat dissipation efficiency and system reliability. The thin film flow over a spinning disk of a ternary hybrid nanofluid (THNF) containing nanoparticles of MoS₂, CuO, and Al₂O₃ is the main subject of this work. The flow and heat transfer properties of the nanoliquid are examined in relation to a magnetic field, a Joule heating and nonlinear radiative heat flux. The resulting reduced ordinary differential equations are solved numerically in MATLAB through bvp4c solver. The findings indicate that faster heat transmission from the surface to the liquid is made possible by a thinner coating because of a steeper temperature gradient. Further, the study reveals that ternary hybrid nanofluids exhibit a superior energy transport rate compared to hybrid nanofluids at the disk's surface.