Berlin 2008 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 29: Poster II
DY 29.53: Poster
Donnerstag, 28. Februar 2008, 16:00–18:00, Poster C
Sequential random packings of spheres and ellipsoids — •Pedro Lind1, Reza Baram2, and Hans Herrmann2 — 1Institute for Computational Physics, Universität Stuttgart, Pfaffenwaldring 27, D-70569 Stuttgart, Germany — 2Computational Physics, IfB, HIF E12, ETH Hönggerberg, CH-8093 Zürich, Switzerland
This study has two parts. First, we generalize the recent study of random space-filling bearings to a more realistic situation, where the spacing offset varies randomly during the space-filling procedure, and show that it reproduces well the size-distributions observed in recent studies of real fault gouges. In particular, we show that the fractal dimensions of random polydisperse bearings sweep predominantly the low range of values in the spectrum of fractal dimensions observed along real faults, which strengthen the evidence that polydisperse bearings may explain the occurrence of seismic gaps in nature. Second, we present some new remarks on sequential algorithms for packing ellipsoids.