# Natural Convection in Tall Cavity: Ra=1.43E+6 # Expts of Betts and Bokhari # Temperature profile across the cavity on external surface of the perspex back wall at y/H= 0.70 # x (mm) T (deg C) 1 19 5 21.23 19 29.92 38.1 35.01 57.2 41.1 71.2 49.6 75.2 53.06