Abstract

Anisotropy is generally a consequence of preferential orientation or asymmetric geometry of grains or fibers. An example of such a medium is loft insulation which usually has lower permeability across the insulating layer than it has in the perpendicular directions. Another important example is geological system with anisotropic sediments and rocks. This chapter reviews the research on convective flow through anisotropic porous media. The chapter emphasizes the effects of anisotropy on the marginal stability limit at the onset of convection, the flow structure, and the heat transfer rate. The chapter also describes the convection in horizontal layers, inclined layers, enclosures filled with a porous medium, convective boundary-layer flow, hydrodynamic dispersion, double-diffusive convection, and anisotropy in multilayered media.

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