| Title | Onset of Immersed Granular Avalanches by DEM-LBM Approach |
| Publication Type | Conference Proceedings |
| Year of Publication | 2011 |
| Authors | Delenne J-Y, Mansouri M., Radjaï F, El Youssoufi M S, Seridi A. |
| Editor | Bonelli S, Dascalu C, Nicot F |
| Sponsor | CEMAGREF, CNRS, EDF, Univ Joseph Fourier, Provence Alpes Cotes Azur Prov, RPILLAR |
| Conference Name | 9th International Workshop on Buifurcation and Degradation in Geomaterials (IWBDG 2011) |
| Volume | Springer Series in Geomechanics and Geoengineering - ADVANCES IN BIFURCATION AND DEGRADATION IN GEOMATERIALS |
| Pagination | 109 - 115 |
| Date Published | May-28-2011 |
| Publisher | Springer Netherlands |
| Conference Location | MAY 23-26 2011 Porquerolles, FRANCE |
| ISBN Number | 978-94-007-1420-5 |
| ISBN | 1866-8755 |
| Abstract | We present 3D grain-fluid simulations based on the discrete element method interfaced with the lattice Boltzmann method and applied to investigate the initiation of underwater granular flows. We prepare granular beds of 800 spherical grains with different values of the initial solid fraction in a biperiodic rectangular box. In order to trigger an avalanche, the bed is instantaneously tilted to a finite slope angle above the maximum angle of stability. We simulate the dynamics of the transient flow for different solid fractions. In agreement with the experimental work of Iverson (Water Resour Res 36(7):1897–1910, 2000) and Pailha et al. (Phys Fluids 20(11):111701, 2008), we find that the flow onset is controlled by the initial solid fraction. |
| DOI | 10.1007/978-94-007-1421-210.1007/978-94-007-1421-2_14 |