INVESTIGATION OF QUADRATIC RADIATION AND QUADRATIC CONVECTION EFFECTS ON UNSTEADY FLOW OF SUTTERBY NANOFLUID PAST A ROTATING SPHERE

This project investigates the impact of quadratic radiation and convection on the unsteady flow of a Sutterby nanofluid past a rotating sphere. The Sutterby nanofluid, known for its enhanced heat transfer properties, is modeled using the governing equa tions of continuity, momentum, and energy. The analysis incorporates quadratic ther mal radiation and natural convection effects, with additional complexities introduced by the sphere’s rotation. These forces alter the flow and thermal characteristics of the nanofluid. The governing system of nonlinear partial differential equations are solved numerically, with results validated against existing solutions. The physical phases of the flow such as velocity, temperature, and nanoparticle concentration are analyzed to evaluate the influence of important parameters. The study reveals that both quadratic radiation and convection significantly alter the flow and heat transfer behavior, impacting the thermal efficiency of systems involving rotating spheres. These findings provide valuable insights for optimizing heat transfer in industrial appli cations, such as rotating machinery, where the use of nanofluids can enhance thermal management.