# Natural Convection in Tall Cavity: Ra=8.6E+5 # Expts of Betts and Bokhari # Temperature profile across the cavity on external surface of the perspex back wall at y/H= 0.50 # x (mm) T (deg C) 1 16.56 5 18.03 19 22.8 38.1 25.62 57.2 29.1 71.2 32.41 75.2 33.61