Fig. 7

Streamlines and axial velocity contours: effect of varying the number of jets and jet–jet spacing: (a) S = 2, N = 5–11, (b) N = 5, S = 1–4.
Streamlines and axial velocity contours: effect of varying the number of jets and jet–jet spacing: (a) S = 2, N = 5–11, (b) N = 5, S = 1–4.