630801.fig.003a
(a)  Re = 4
630801.fig.003b
(b) Re = 10
630801.fig.003c
(c) Re = 20
630801.fig.003d
(d) Re = 30
Figure 3: Streamline patterns for steady flows past a square cylinder at different Reynolds numbers for a blockage ratio B = 8: (a) Re = 4 (b) Re=10 (c) Re = 20 and (d) Re = 30; lattice size: 800 × 128.