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Thermophysics and Aeromechanics

2008 year, number 3

Numerical analysis of the spreading and crystallization dynamics of the modified metal droplet on the substrate

A.N. Cherepanov1, V.N. Popov2, O.P. Solonenko3
1 Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2 Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
3 Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: plasma-sprayed coating, collision of droplet with substrate, crystallization kinetics, supercooling
Pages: 483-489

Abstract

A physical and mathematical model is proposed and numerical investigations are carried out for processes of the deformation and non-equilibrium crystallization of a liquid metal drop with modifying refractory solid nano-inclusions at its collision with a solid substrate under the typical conditions of the gas-thermal and also plasma-sprayed coating. An analysis of the formation of splats is carried out depending on the substrate temperature.