# 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= 0.05 # x (mm) T (deg C) 1 15.63 5 16.64 19 19.61 38.1 22.28 57.2 25.9 71.2 30.75 75.2 32.61