Abstract
This study presents a numerical analysis of a two-dimensional flow propagating through porous media. The vortical flow is produced by a piston-cylinder vortex ring generator. The objective is to understand the flow behavior in porous media as a function of impingement velocity and porous media properties, e.g. porosity and permeability. The results show that the formation of vortices and flow pattern in porous media strongly depend on the permeability of the porous media but only has a weak dependence on the porosity and Reynolds number. The average vorticity over the porous media is calculated for various velocities, porosities and permeabilities. The results reveal that when Reynolds number is low, neither porosity nor permeability have any significant effect on average vorticity. However for high Reynolds numbers, the average vorticity is affected by permeability but not by porosity.
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