Paper presented at the 6th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 30 June - 2 July, 2008.
The particles projected by arc plasma are generally of
micrometric size (ranging in general between 10 and 100 μm)
in conventional projection and their impact velocity ranges
from 50 to 350 m/s. characteristic times for the formation of a
splate are very short: less than 5 μs for the duration of
spreading of the particle melted with a solidification which can
start before the end of the spreading stage and continues in
general between 0.8 and 10 μs after the impact.This work is
devoted to studying numerically this complex coupling. The
model is firstly validated in comparison with available results
of particles spreading (large size and low impact velocity < 1
m/s).
