Abstract

Considering the significance of disk-shaped geometries in various thermal and mass transfer based industrial systems such as automobile braking, fluid stirring in laboratories, and gas turbine engines, the present work aims to study the impact of horizontal magnetic field, heat source/sink, and activation energy over rotating disk. The mathematical model takes into the account the aggregation of nanoparticle for this analysis. The analysis is carried out in two different scenarios which is with nanoparticle aggregation and without nanoparticle aggregation. The numerical solution for this model is obtained via boundary value problem-5th collocation (bvp-5c) technique. Then the solutions are discussed via graphical plots. The significant outcomes reveal that both radial and tangential velocity profiles rise for stretching rate parameter but reduces for magnetic field parameter. Thermal analysis shows that the Biot number and heat sink/source enhance strength of temperature field, showcasing that the heat is penetrated more effectively. Rise in reaction rate causes concentration profile to drop whereas growing activation energy boosts concentration profile, highlighting regulated mass diffusion. The results from this study can optimize heat and mass transmission in rotating thermal applications like rotating heat exchangers, magnetic regulated energy reactors, and many more.