# 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 front wall at y/H= 0.711 # x (mm) T (deg C) 1 16.37 5 18.08 19 22.18 38.1 26.17 57.2 29.35 71.2 32.83 75.2 33.58