Scaling laws in granular continuous avalanches in a rotating drum |
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| Institution: | 1. Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 487-3, Santiago, Chile;2. Facultad de Ingeniería, Universidad de los Andes, Av. San Carlos de Apoquindo 2200, Santiago, Chile;3. Instituto de Cálculo, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II-2do. Piso, 1428 Buenos Aires, Argentina;1. National Agriculture and Food Research Organization (NARO), 3-1-3 Kannondai, Tsukuba, Ibaraki Prefecture, Japan;2. Shin-Etsu Chemical Co., Ltd., 28-1 Nishifukushima, Kubiki-ku, Joetsu, Niigata Prefecture, Japan;1. School of Physics and Astronomy, Raymond and Beverly Sackler, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel;2. Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA;3. Department of Bioengineering, Rice University, Houston, TX 77005, USA;4. Department of Mathematics, Bar Ilan University, Ramat Gan 5290002, Israel;1. Warsaw University of Technology, Faculty of Materials Science and Engineering, ul. Wołoska 141, 02-507 Warsaw, Poland;2. Institute of Precision Mechanics, ul. Duchnicka 3, 01-796 Warsaw, Poland;3. Institute of Physical Chemistry of the Polish Academy of Science, ul. Kasprzaka, 44/52, 01-224 Warsaw, Poland |
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| Abstract: | We study the front shape of avalanches produced in a rotating two-dimensional drum partially filled with small glass beads. We focus our work on the study of the length and shape of granular fronts, in particular how they do scale in terms of the physical parameters involved. A single scaling law for the length is found. This scaling law is also relevant for the behavior of the full shape of the fronts. More than 300 different fronts shape, for different values of the parameters collapse into an universal curve. |
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