A numerical study of dynamics in thin hopper flow and granular jet

Wang Meng-Ke^{1, 2}, Yang Guang-Hui^{1, 2}, Zhang Sheng^{1, 2}, Cai Han-Jie^{1, 2}, Lin Ping^{1, 2, †}, Chen Liang-Wen^{1, 2}, Yang Lei^{1, 2}

The flow rate as a function of the width (D) of the slot. The red line is a fit of Beverloo’s law. The inset shows a log–log plot.