Regensburg 2016 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 28: Poster - Complex Fluids, Granular Matter, Glasses
DY 28.12: Poster
Dienstag, 8. März 2016, 18:15–21:00, Poster C
Thermal conductivity and geometric cohesion in aspherical granular materials — •Katharina Staudt1 and Thomas Grillenbeck1,2 — 1Ignaz-Günther-Gymnasium Rosenheim, Germany — 2Fachhochschule Rosenheim University of Applied Sciences, Germany
Aspherical granular materials show the phenomenon of geometric cohesion, i.e. cohesion due to particle geometry. Geometric cohesion is influenced by the contacts between particles - as is the thermal conductivity of any granular material. In my study, I examined the thermal conductivity of various package fractions of U-shaped staples as radically aspherical granular material. The experiments showed an increasing thermal conductivity with increasing package fraction, without evidence for an influence of geometric cohesion on thermal conductivity. Therefore, the (trivial) positive correlation between package fraction and thermal conductivity apparently applies also to radically aspherical granular materials like U-shaped staples.