Influence of mixed convection nanofluid flow over a rotating sphere in the presence of diffusion of liquid hydrogen and ammonia

This work concentrates on the triple diffusive mixed convection nanofluid flow over a rotating sphere in view of cooling of rotating spherical products in various industries, machinery fields, heat and mass transfer applications. Diffusive components such as liquid hydrogen, ammonia, and nanoparticles have various practical applications for cooling in various industrial processes. This study is considered innovative because it examines the effect of multi diffusive components and nanoparticles on mixed convection flow over a rotating sphere reported for the first time. The physical problem is modelled mathematically as a set of coupled nonlinear dimensional partial differential equations. We employ the implicit finite difference scheme equipped with the Quasilinearization technique to solve the set of non-dimensional partial differential equations obtained via a non-similar approach. The numerical results are discussed through graphs. This work illustrates the significance of sphere rotations on flow, heat and mass transfer and boundary layer separation. This work also accounts for the impacts of thermophoresis and the Brownian motion of nanoparticles. The so obtained numerical results are compared with earlier results, and they are found to be in excellent agreement. © 2021 International Association for Mathematics and Computers in Simulation (IMACS)