PATTERNS IN VIBRATED GRANULAR MEDIA

Publications:

1. L.S.Tsimring and I.Aranson, Cellular and localized structures in a vibrated granular layer, Phys. Rev. Lett. v.79, n.1 (1997).
2. I. Aranson and L.S.Tsimring. Formation of periodic and localized patterns in an oscillating granular layer, Physica A, 249, 103 (1998).
3. I.Aranson, L.S.Tsimring, and V.Vinokur. Hexagons and interfaces in a vibrated granular layer, Phys. Rev. E, 59, R1327-R1330 (1999).
4. I.Aranson, W. Kwok, G. Karapetrov, U. Welp, G. W. Crabtree, V.M. Vinokur and L.S. Tsimring. Controlled dynamics of interfaces in a vibrated granular layer, Phys. Rev. Lett., 82, 731 (1999)
5. D.Blair, I.S.Aranson, G.W.Crabtree, V.Vinokur, L.S.Tsimring, C.Josserand. Patterns in thin vibrated granular layers: Interfaces, hexagons, and superoscillons, Phys. Rev. E, 61, 5600 (2000).

Experiments at the University of Texas, Austin

Experiments at Argonne National Lab (pictures and movies)

Movie 1: hexagonal pattern at slow motion (250 fps)

Movie 2: interface dynamics at slow motion (250 fps)

Movie 3: transition from hexagons to interfaces: stroboscopic recording, 1 frame per period

Theoretical model (slides)