A Three-dimensional Numerical Simulation Of
Particle-gas Mixing In An Ejection With A
Spherical Sample Surface
Author(s)
K. Liu, L. Li, S. Yuan, J. Bai & P. Li
Abstract
A three-dimensional numerical simulation employed with particle trajectory
model is implemented to simulate particle-gas interaction in spherical ejecta
problem, in which particles are ejected from a shocked sample surface. The
particles’ initial distribution is modelled due to characteristics of ejection
processes and references data. And action on gas of the moving sample surface is
simulated by using ghost fluid coupling Eulerian-Lagrangian method. Only a
steady drag force between particles and gas is considered at present. The
evolutions of gas flow and particle movements are shown in this paper. It is
concluded that the particle cloud naturally changes into a high-density lowvelocity
region and a low-density high-velocity one. This qualitatively agrees
with ejection experimental acquaintance.
Keywords: spherical ejecta, particle-gas mixing, particle trajectory model, ghost
fluid coupling Eulerian-Lagrangian method, three-dimensional numerical
simulation.
Keywords
Keywords: spherical ejecta, particle-gas mixing, particle trajectory model, ghost
fluid coupling Eulerian-Lagrangian method, three-dimensional numerical
simulation.
Related Book
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