A numerical study of dynamics in thin hopper flow and granular jet
Wang Meng-Ke1, 2, Yang Guang-Hui1, 2, Zhang Sheng1, 2, Cai Han-Jie1, 2, Lin Ping1, 2, †, Chen Liang-Wen1, 2, Yang Lei1, 2
       

Spatial profiles of ratio of error in hopper flow with (a) D = 10d, (b) D = 30d. Spatial profiles of ratio of error in granular jet with (c) D = 10d, (d) D = 30d.