2002/12/24 by Dmitri Volfson, Lev S. Tsimring, Volfson, Dmitri +3
Engineering · Environmental Science · Physics and Astronomy · #FOS: Physical sciences #Geotechnical and Geomechanical Engineering #Granular flow and fluidized beds #Landslides and related hazards #Materials Science (cond-mat.mtrl-sci) #Soft Condensed Matter (cond-mat.soft) #cond-mat.mtrl-sci #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.cond-mat/0212574
4 pages, 4 figures, submitted to PRL
arxiv created 2002/12/24 · openalex publication_date 2002/12/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We carry out a detailed comparison of soft particle molecular dynamics simulations with the theory of partially fluidized shear granular flows. We verify by direct simulations a constitutive relation based on the separation of the shear stress tensor into a fluid part proportional to the strain rate tensor, and a remaining solid part. The ratio of these two components is determined by the order parameter. Based on results of the simulations we construct the ``free energy'' function for the order parameter. We also present the simulations of the stationary deep 2D granular flows driven by an upper wall and compare it with the continuum theory.