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SIMULATION OF VORTEX RING PERMEATION IN POROUS MEDIA

Том 16, Выпуск 7, 2013, pp. 597-605
DOI: 10.1615/JPorMedia.v16.i7.20
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Краткое описание

This study presents a numerical analysis of a two-dimensional vortical flow propagating through an isotropic, rigid, homogeneous porous medium. 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, specifically, porosity and permeability. Results show that the formation of vortices and flow pattern in porous media strongly depend on permeability but have only a weak dependence on the porosity and Reynolds number. Furthermore, the average vorticity over the porous medium is calculated for various velocities, porosities, and permeabilities. The results show that for laminar flow injection, the average vortivcity is not influenced by either porosity or permeability of the domain. However, for high Reynolds flow velocity, permeability and porosoity both play significant roles on the magnitude of the overall vorticity.

Ключевые слова: porous media, vortex flow
ЦИТИРОВАНО В
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  3. An Xudong, Jiang Lin, Hassanipour Fatemeh, Numerical Analysis of Air Vortex Interaction with Porous Screen, Fluids, 6, 2, 2021. Crossref

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