Numerical analysis of shock wave interaction with a cloud of particles in a channel with bends

摘要

Shock wave interactions with a cloud of particles were analysed using an Eulerian-Lagrangian numerical technique. In this approach, the particle-particle and particle-wall interactions can be modelled directly. Simulations were carried out in a channel with two bends: an issue important for pneumatic and slurry transport of particles, as well as for dust explosions in industrial facilities. At the beginning, the results are shown as snapshots, showing the reader how the particle cloud propagates through the channel. At the next stage some sta tistics is performed in order to analyse the influence of channel geometry. The following parameters are analysed: the history of the per centage of particles that have travelled along the whole channel and the history of the average kinetic energy of the particles. It is shown how the channel structure and particle diameter influences the parameters.