Issue |
Europhys. Lett.
Volume 66, Number 2, April 2004
|
|
---|---|---|
Page(s) | 277 - 283 | |
Section | Interdisciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i2003-10190-3 | |
Published online | 01 April 2004 |
Impulse distributions in dense granular flows: Signatures of large-scale spatial structures
Martin Fisher School of Physics, Brandeis University Mailstop 057, Waltham, MA 02454-9110, USA
Received:
12
September
2003
Accepted:
11
February
2004
We study the impulse distribution in a model of gravity-driven granular flow and show that changes in the distribution are correlated with the appearance of clusters of “frequently-colliding” particles. Our simulations show increasingly large linear clusters as the flow velocity decreases. The dissipative nature of the collisions leads to an increase of small-impulse events as the size of these clusters grow and can explain the observed changes in the impulse distribution as the flow rate decreases.
PACS: 81.05.Rm – Porous materials; granular materials / 45.70.-n – Granular systems / 83.10.Pp – Particle dynamics
© EDP Sciences, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.