We study the interface dynamics of a binary particle mixture in a rotating cylinder numerically. By considering only the particle motion in axial direction, it is shown that the initial dynamics canâ€¦ (More)

The settling dynamics of spherical and elliptical particles in a viscous Newtonian fluid are investigated numerically using a finite difference technique. The terminal velocity for sphericalâ€¦ (More)

We simulate the size segregation of a binary mixture of granular material in a half filled two-dimensional rotating drum using the discrete elements method with linear contact forces. The dynamics ofâ€¦ (More)

Recent experiments by Baxter et al. showed the existence of density waves in granular material flowing out of a hopper. We show, using Molecular Dynamics Simulations, that this effect is aâ€¦ (More)

â€“ The solidâ€“fluid phase transition of a granular material shaken horizontally is investigated numerically. We find that it is a second-order phase transition and propose two order parameters, namelyâ€¦ (More)

The dynamics and the transition to the centrifugal regime are studied analytically and numerically for particles in rotating drum. The importance of the particle-wall friction coefficient isâ€¦ (More)

Synovial B-lymphocytes which are a constant feature of RA synovialitis are expanded in an antigen dependent manner. To understand the nature of the antigen driving the B-cell expansion it would beâ€¦ (More)

in Two{Dimensional Simulations of Sedimentation W. Kaltho 1;3, S. Schwarzer1;3, G.H. Ristow2 and H. J. Herrmann3 May 24, 1995 1 HLRZ, c/o Forschungszentrum J ulich 52425 J ulich, Germany 2â€¦ (More)

Particle simulations were among the first applications to be implemented on scalar computers over forty years ago, and have since played an important role in ma ny science and engineeringâ€¦ (More)