@article{Saada_2010 author = {M. Ait Saada and Salah Chikh and Antonio Campo}, title = {Augmentation or Suppression of Natural Convective Heat Transfer in Horizontal Annuli Filled with Air and Partially Filled with a Porous Matrix Layer}, journal = {Heat Transfer Research}, issn = {1064-2285}, year = {2010}, volume = {41}, number = {5}, pages = {573--597} }