# Natural Convection in Tall Cavity: Ra=8.6E+5 # Expts of Betts and Bokhari # Horizontal mean velocity profile through z= 0, y/H= 0.50 # x (mm) U (m/s) 20 -0.002 23 -0.006 28 -0.006 33 -0.002 38 0.004 43 0.002 48 0.005 53 0 55 -0.002