# In-line tube bundle array: 3.6x2.1 array # Experiments by S. Balabani # Mean U velocity profiles at x/d= 6.3 # # y/d U (m/s) 1.8 1.4 1.6 1.35 1.4 1.36 1.2 1.34 1 1.26 0.8 1.22 0.6 1.29