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Download statistics - Document (COUNTER):
Szymkiewicz, Adam; Neuweiler, Insa; Helmig, Rainer: Influence of heterogeneous air entry pressure on large scale unsaturated flow in porous medi. In: Acta Geophysica 62 (2014), Nr. 5, S. 1179-1191. DOI: http://dx.doi.org/10.2478/s11600-014-0224-7
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Selected time period:
Sum total of downloads: 183
| Abstract: | |
The paper presents numerical simulations of water infiltration in unsaturated porous media containing coarse-textured inclusions embedded in fine-textured background material. The calculations are performed using the two-phase model for water and air flow and a simplified model known as the Richards equation. It is shown that the Richards equation cannot correctly describe flow in the presence of heterogeneities. However, its performance can be improved by introducing appropriately defined effective capillary and permeability functions, representing largescale behaviour of the heterogeneous medium. | |
| License of this version: | CC BY-NC-ND 3.0 Unported |
| Document Type: | Article |
| Publishing status: | publishedVersion |
| Issue Date: | 2014-08-17 |
| Appears in Collections: | Naturwissenschaftliche Fakultät |
distribution of downloads over the selected time period:
downloads by country:
| pos. | country | downloads | ||
|---|---|---|---|---|
| total | perc. | |||
| 1 |  |
Germany | 124 | 67.76% |
| 2 |  |
United States | 19 | 10.38% |
| 3 |  |
China | 9 | 4.92% |
| 4 |  |
Poland | 6 | 3.28% |
| 5 |  |
No geo information available | 4 | 2.19% |
| 6 |  |
Ireland | 3 | 1.64% |
| 7 |  |
United Kingdom | 3 | 1.64% |
| 8 |  |
France | 3 | 1.64% |
| 9 |  |
Argentina | 2 | 1.09% |
| 10 |  |
Taiwan | 1 | 0.55% |
| other countries | 9 | 4.92% | ||
Further download figures and rankings:
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