# In-line tube bundle array: 3.6x2.1 array # Experiments by S. Balabani # Mean U velocity profiles at x/d= 2.5 # # y/d U (m/s) 1.8 1.33 1.6 1.33 1.4 1.38 1.2 1.42 1 1.39 0.8 1.3 0.7 1.13 0.6 0.92