# In-line tube bundle array: 3.6x2.1 array # Experiments by S. Balabani # Rms v' velocity profiles at x/d= 6.3 # # y/d v' (m/s) 1.8 0.15 1.6 0.18 1.4 0.21 1.2 0.29 1 0.34 0.9 0.36