Nanoparticle aggregation effect on heat transfer mechanism of Sutterby nanofluid flow over a wedge

Nanoparticles play a significant role in modern technologies like heat exchangers, electronics, and materials science, where they improve heat transfer. This study is relevant to applications such as production of polymer sheets, lubrication, and crystal growth, as well as to industries such as biomedical and polymer manufacturing. In this work, we look at how a Sutterby nanofluid with Titanium Dioxide ( TiO 2 ) nanoparticles in Ethylene Glycol (EG) behaves over a wedge-shaped surface. We emphasis on comparing the influence of aggregated and non-aggregated nanoparticles on heat transfer and on how particle shape affects thermal performance. We start with a mathematical model, formulated as a set of nonlinear partial differential equations, which we transform to a system of coupled ordinary differential equations via similarity transformations and solved with the aid of bvp4c solver in MATLAB software. Our investigation includes the impacts of a variable heat source or sink, convective heating and nonlinear thermal radiation on the fluid behavior, specifically temperature, and velocity profiles and also on drag coefficient and rate of thermal transmission. The results reveal that, the thermal transmission rate in aggregated case is approximately 10.23% more than the non-aggregated case due to the variation in wedge angle parameter.