Abstract
Porous media flows can be found in a large number of fields ranging from engineering to medical applications. A volume-averaged approach to simulating porous media is often used because of its practicality and computational efficiency. Derivation of the volume-averaged porous flow equations introduces additional porous resistance terms to the momentum equation. When discretized these porous resistance terms create a body force discontinuity at the porous-fluid interface, which may lead to spurious oscillations if not accounted for properly. A variety of numerical techniques has been proposed to solve this problem, but few of them have concentrated on collocated grids and segregated solvers, which have wide applications in academia and industry. In this work we discuss the source of the spurious oscillations, quantify their amplitude and apply interface treatments methods that successfully remove the oscillations. The interface treatment methods are tested in a variety of realistic scenarios, including the porous plug and Beaver-Joseph test cases and show excellent results, minimizing or entirely removing the spurious oscillations at the porous-fluid interface.
Original language | Undefined |
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Title of host publication | Proceedings of the 67th APS-DFD Meeting |
Place of Publication | Maryland |
Publisher | American Physical Society |
Pages | - |
Publication status | Published - 28 Nov 2014 |
Event | 67th Annual Meeting of the APS Division of Fluid Dynamics, APS-DFD 2014 - San Francisco, United States Duration: 23 Nov 2014 → 25 Nov 2014 Conference number: 67 |
Publication series
Name | |
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ISSN (Print) | 0003-0503 |
Conference
Conference | 67th Annual Meeting of the APS Division of Fluid Dynamics, APS-DFD 2014 |
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Abbreviated title | APS-DFD |
Country | United States |
City | San Francisco |
Period | 23/11/14 → 25/11/14 |
Keywords
- METIS-309822
- EWI-25582