1. Natural convection between concentric vertical cylinders;de Vahl Davis,1969
2. Natural convection annular and rectangular cavities—a numerical study;Thomas,1970
3. Free convection heat transfer in a liquid-filled annulus;Prasad;J. Heat Transfer,1985
4. Heat transfer across vertical layers;Emery;J. Heat Transfer,1965
5. A numerical study of natural convection in a vertical rectangular enclosure;Rubel,1968