Flow of foam past an elliptical obstacle
| dc.creator | Graner, Benjamin Dollet Melanie Durth Francois | |
| dc.date | 2006-01-05 | |
| dc.date | 2006-03-23 | |
| dc.date.accessioned | 2026-07-07T06:57:22Z | |
| dc.date.available | 2026-07-07T06:57:22Z | |
| dc.description | To investigate the link between discrete, small-scale and continuous, large scale mechanical properties of a foam, we observe its two-dimensional flow in a channel, around an elliptical obstacle. We measure the drag, lift and torque acting on the ellipse {\it versus} the angle between its major axis and the flow direction. The drag increases with the spanwise dimension, in marked contrast with a square obstacle. The lift passes through a smooth extremum at an angle close to, but smaller than 45$^\circ$. The torque peaks at a significantly smaller angle, 26$^\circ$. No existing model can reproduce the observed viscous, elastic, plastic behavior. We propose a microscopic visco-elasto-plastic model which agrees qualitatively with the data. | |
| dc.description | 4 pages, 4 figures, resubmitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0601100 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0601100 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/106942 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Flow of foam past an elliptical obstacle | |
| dc.type | text |