# Natural Convection in Tall Cavity: Ra=8.6E+5 # Expts of Betts and Bokhari # Temperature profile across the cavity at mid-height of the 5cm top rubber wall at z= 230 mm # x (mm) T (deg C) 1 15.66 9 18.01 38.1 25.89 67.2 32.93 75.2 34.6