【論文特集】混相流研究の進展
CFD-DEMを用いた衝撃波を伴う固気二相流の数値解析
2018 年 32 巻 1 号 p. 65-72
詳細
2018 年 32 巻 1 号 p. 65-72
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.
