# Natural Convection in Tall Cavity: Ra=8.6E+5 # Expts of Betts and Bokhari # Horizontal mean velocity profile through z= 0, y/H= 0.10 # x (mm) U (m/s) 18.8 0.005 20 0.004 23 0.005 28 0.009 33 0.01 38 0.01 43 0.008 48 0.008 53 0.002 55 0.003