Numerical simulation of liquid metal particles impacting onto solid substrate: description of hydrodynamic processes and heat transfers

The particle crush on solid substrate is a phenomenon combining a multiphas e flow, rapid hydrodynamics, strong temperature gradients and liquid/solid phase changes in a strongly coupled way. To reproduce the whole sequence (e xcept the solidification phase for the present), a direct numerical simulat ion method has been chosen. In this article, we present a 1-fluid model, re presenting the physical processes, and an original coupled hybrid/TVD metho d devoted to approximating the equation system using finite volume discreti sation. Results obtained from three-dimensional calculations are presented. A discussion is developed to show the main qualities of the method. In the near future, it will be used to deal with the study of the instabilities a ppearing when a liquid metal particle collides on a solid substrate and sol idifies.