Active Darcy's Law.
| Autor: | Keogh RR; School of Physics and Astronomy, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom., Kozhukhov T; School of Physics and Astronomy, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom., Thijssen K; Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, Copenhagen, Denmark., Shendruk TN; School of Physics and Astronomy, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2024 May 03; Vol. 132 (18), pp. 188301. |
| DOI: | 10.1103/PhysRevLett.132.188301 |
| Abstrakt: | While bacterial swarms can exhibit active turbulence in vacant spaces, they naturally inhabit crowded environments. We numerically show that driving disorderly active fluids through porous media enhances Darcy's law. While purely active flows average to zero flux, hybrid active/driven flows display greater drift than purely pressure-driven flows. This enhancement is nonmonotonic with activity, leading to an optimal activity to maximize flow rate. We incorporate the active contribution into an active Darcy's law, which may serve to help understand anomalous transport of swarming in porous media. |
| Databáze: | MEDLINE |
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