JAPANESE JOURNAL OF MULTIPHASE FLOW
Online ISSN : 1881-5790
Print ISSN : 0914-2843
ISSN-L : 0914-2843
Papers (Special Issue) : Progress in Multiphase Flow Research
CFD-DEM Simulation for Gas-Particle Flow with Shock Waves
Akihito KIMURAKei SHIMURAAkiko MATSUO
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2018 Volume 32 Issue 1 Pages 65-72

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Abstract

In this paper, mechanism of interaction between shock wave and particles is investigated using CFD-DEM model. In CFD-DEM model, the limit of the grid resolution depends on the particle size. The particle-grid is introduced to solve this problem, and investigate the effect of it in the gas-particle shock tube. From the result of no particle grid case, large pressure oscillations appear because the grid size is almost the same as the particle size. On the other hand, the results of pressure fluctuations are good agreement with the experiment results using particle-grid. Hence, the particle-grid contributes to maintain calculation accuracy.

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© 2018 by The Japanese Society for Multiphase Flow
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