630801.fig.0012a
(a) l = 25.0D
630801.fig.0012b
(b) l = 16.0D
630801.fig.0012c
(c) l = 12.5D
630801.fig.0012d
(d) l = 10.0D
630801.fig.0012e
(e) l = 8.5D 
Figure 12: Instantaneous vorticity contours for flows past a square cylinder at different cylinder locations for B = 8, Re = 51: (a) l = 25.0D, (b) l = 16.0D, (c) l = 12.5D, (d) l = 10.0D, and (e) l = 8.5D; lattice size of 500 × 80.