Dresden 2009 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
DY: Fachverband Dynamik und Statistische Physik
DY 12: Poster I
DY 12.1: Poster
Dienstag, 24. März 2009, 14:30–16:30, P1A
Influence of broken rotational symmetry on granular segregation in horizontally vibrated systems — •Axel Feltrup1, Ingo Rehberg1, and Christof Krülle2 — 1Experimentalphysik V, Universität Bayreuth, D-95440 Bayreuth, Germany — 2Maschinenbau und Mechatronik, Hochschule Karlsruhe - Technik und Wirtschaft, D-76133 Karlsruhe, Germany
A dish filled with glass beads is excited by a circular horizontal vibration. When inserting an intruder of different size or density, we can observe segregation of the intruder. Previous experiments were made in a circular dish[1,2]. By using non-circular dishes of different geometries we investigate the influence of broken rotational symmetry on the flow of the glass beads and the intruder.
[1]T. Schnautz, R. Brito, C. A. Kruelle, and I. Rehberg, A horizontal brazil-nut effect and its reverse, Physical Review Letters 95, 028001 (2005) [2]S. Aumaître, T. Schnautz, C.A. Kruelle, and I. Rehberg: Granular phase transition as a precondition for segregation, Physical Review Letters 90, 114302 (2003).