抄録
A parallel computation technique has been proposed for mixing and segregation of granular mixture with a multi-block grid system. The particle motions in multiple sub-blocks are calculated simultaneously on the basis of the distinct element method (DEM). The possible particle contacts through the common boundary shared by two sub-blocks are detected by exchanging the particle information included in the near-boundary volumes. The developed computational method was applied to the particulate flows in a cylinder rotating around its horizontal axis. From the comparison of the necessary CPU time, the computational efficiency in the parallel method has been confirmed. In addition, it was shown that the predicted distributions of the granular binary mixture are in good agreement with the experimental results.
