期刊
TRANSPORT IN POROUS MEDIA
卷 86, 期 3, 页码 965-972出版社
SPRINGER
DOI: 10.1007/s11242-010-9667-8
关键词
Porous media; Non-Newtonian fluid; Power-law fluid; Non-Darcy free convection
A boundary layer analysis was presented to study the non-Darcy-free convection of a power-law fluid over a non-isothermal two-dimensional body embedded in a porous medium. The Ostwald-de Waele power-law model was used to characterize the non-Newtonian fluid behavior. Similarity solutions were obtained with variations in surface temperature or surface heat flux. In view of the fact that most of the non-Newtonian fluids have large Prandtl numbers, this study was directed toward such fluids. The effects of the porous medium parameters, k (1) and k (2), body shape parameter, m, and surface thermal variations parameter, p, as well as the power-law index, n, were examined.
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