# Natural Convection in Tall Cavity: Ra=1.43E+6 # Expts of Betts and Bokhari # Horizontal rms velocity profile through z= 0, y/H= 0.50 # x (mm) u' (m/s) 23 0.068 28 0.076 33 0.078 38 0.077 43 0.076 48 0.075 53 0.066