A finite element analysis is performed to study the unsteady natural convection flow of a nanofluid past a vertical cone under the influence of applied magnetic field and thermal radiation. The governing two-dimensional momentum, energy and concentration are highly non-linear coupled partial differential equations. They are solved by finite element method based on Galerkin weighted residual approach. The investigations are conducted for the effects of various physical parameters such as magnetic parameter (M), Prandtl number (Pr), radiation parameter (Rd), Lewis number (Le), Brownian motion parameter (Nb), thermophoresis parameter (Nt), ratio of Grashof numbers and index parameter (n). The results indicate that the velocity, temperature and concentration fields are significantly dependent on the above-mentioned flow parameters.
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