Figure 4

The effect of packing density on velocity field \({\alpha }^{\left(0\right)}=0.3\): η = 0 (left) and η = 0.5 (right).
The effect of packing density on velocity field \({\alpha }^{\left(0\right)}=0.3\): η = 0 (left) and η = 0.5 (right).