Paper presented at the 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 1-4 July, 2007.
This paper deals with solid/liquid
transition in a double-layered micrometric
composite spherical particle metal/ceramic
injected into a high temperature plasma jet of
argon-hydrogen. The analysis focuses on
tracking the particle following its trajectory in
order to consider its thermal heat history. The
heat transfer equation is formulated by using
the enthalpy method and its discretization is
carried out by a technique of second order
finite volumes in time and space. The obtained
results show the significant effect of the
geometrical parameters, the phase change and
the coupled heat transfer.