@article{Prasanna_2002 author = {B. M. R. Prasanna and M. Venkatachalappa}, title = {Numerical Study of Natural Convection in a Vertical Cylindrical Annulus Using a Non-Darcy Equation}, journal = {Journal of Porous Media}, issn = {1091-028X}, year = {2002}, volume = {5}, number = {2}, }