engleski

MELTING OF GALLIUM WITH THE INFLUENCE OF NATURAL CONVECTION

In this paper, the finite volume method was applied to solve the mathematical model of melting of pure substance with the influence of natural convection in a two-dimensional situation. In the mathematical model, laminar fluid flow was assumed, and buoyancy forces were modeled using the Boussinesq approximation. The main features of the numerical method used are the application of a fixed Cartesian geometric grid with simultaneous solution of the energy equation in the solid and liquid phases, where the boundary condition at the phase boundary is satisfied by the source term of the energy equation. The developed method was applied to the problem of melting of gallium. By simulating the experimental situation in the melting of gallium, relatively good agreement was obtained with the measurement results. The influence of natural convection on the melting process is important.

Melting, Gallium, Natural convection, Finite volume method, SIMPLER

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