Abstract
The interesting phenomenon is the segregation in the behavior of objects in the rotation barrel. The segregation may be shown, when rotation barrel that filled 2 kinds of objects of different material of size is rotated. Then, it is uncertain for whether it shows this segregation, when the barrel in which rotating center is eccentric is also filled with objects. This study examines and compares the behavior of the 2 kinds of filled objects which are different material or size in the rotation barrel with the eccentricity from experiment and simulation by DEM (Discrete Element Method). As the result, the segregation was shown when it was also eccentric. However, it became difficult to segregate with the increase of the eccentricity.
