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Monday, May 14, 2007 - 2:50 PM

Simulative and Empirical Study of Particle Injection for Very Low Pressure Plasma Spraying (VLPPS)

D. Klein, D. Sokolov, R. Bolot, C. Coddet, University of Technology Belfort-Montbeliard, Belfort Cedex, France

Very Low Pressure Plasma Spraying makes an objective of numerous studies during last years. However experiments revealed some difficulties due to utilizing of conventional plasma spraying equipments in particular plasma gun. De Laval nozzle extension was calculated and tested in the laboratory. As a results homogeneous plasma jet was attain that approve numerical simulation meanwhile particles injection evince some complexities.
This paper presents results of numerical simulation of injection, motion and heating of fine metallic particle in plasma as well as under conditions of VLPPS. Trajectories, velocities and temperature fields were obtained via FLUENT software package. It is shown that a plasma-particles interaction greatly depends on injection conditions.            

Summary: This paper presents results of numerical simulation of injection, motion and heating of fine metallic particle in plasma as well as under conditions of VLPPS. Trajectories, velocities and temperature fields were obtained via FLUENT software package. It is shown that a plasma-particles interaction greatly depends on injection conditions.