1. Combined natural and forced-convection laminar flow and heat transfer of fluids with and without heat sources in channels with linearly varying wall temperatures;Ostrach;NACA TN 3141,1954
2. Laminar natural-convection flow and heat transfer of fluids with and without heat sources in channels with constant wall temperatures;Ostrach;NACA TN 2863,1952
3. On combined free and forced convection in channels;Tao;J. Heat Transfer,1960
4. Natural convection heat transfer between vertical flat plates with uniform heat flux;Lauber,1966
5. The development of free convection between heated vertical plates;Bodoia;J. Heat Transfer,1962