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Numerical Modeling of Water Flow over Porous Media

by Christopher Y. Choi,
Peter M. Waller,
Fukumura Kazunari,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

The momentum transport phenomena at the interface of porous media and fluid are numerically investigated. The single domain approach is used with matching boundary conditions; i.e., the Brinkman-Forchheimer-extended Darcy equation is used for the present study. Five typical porous media found in natural and engineered systems are selected in order to cover a wide range of the Darcy number (6.25x10^-4 ? Da ? 5.90x10^-11. In addition, six different Reynolds numbers (10 ? Re ? 1000) are tested for each case. The importance of viscous shear stress at the interface into the porous medium, a transition region of disturbed flow in the porous medium, and the depth of penetration are discussed.

Subject Headings: Porous media flow | Shear stress | Numerical models | Numerical analysis | Water flow | Fluid flow | Water supply systems

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