https://doi.org/10.1140/epje/i2009-10523-6
Regular Article
Collapsing granular suspensions
1
IfB, HIF E12, ETH Hönggerberg, 8093, Zürich, Switzerland
2
Departamento de Física, Universidade Federal do Ceará, 60451-970, Fortaleza, Ceará, Brazil
* e-mail: dkadau@ethz.ch
Received:
13
October
2008
Revised:
24
August
2009
Accepted:
22
September
2009
Published online:
11
October
2009
A 2D contact dynamics model is proposed as a microscopic description of a collapsing suspension/soil to capture the essential physical processes underlying the dynamics of generation and collapse of the system. Our physical model is compared with real data obtained from in situ measurements performed with a natural collapsing/suspension soil. We show that the shear strength behavior of our collapsing suspension/soil model is very similar to the behavior of this collapsing suspension soil, for both the unperturbed and the perturbed phases of the material.
PACS: 47.57.-s Complex fluids and colloidal systems – / 45.70.Mg Granular flow: mixing, segregation and stratification – / 83.80.Hj Suspensions, dispersions, pastes, slurries, colloids –
© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2009
