# 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= 0.938 # x (mm) T (deg C) 1 16.24 5 18.16 19 23.2 38.1 26.32 57.2 29.63 71.2 33.26 75.2 34.09