Statistics of void sizes and avalanche signatures in a slowly-driven open-sided granular pile

Authors

Dionessa C. Biton ⋅ PH National Institute of Physics, University of the Philippines Diliman
Anjali B. Tarun ⋅ PH National Institute of Physics, University of the Philippines Diliman
Rene C. Batac ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Using image processing of video frames, we obtained the statistical distribution of avalanche sizes in a slowly driven pile of sago grains. Avalanches that form by slowly adding grains to a pile in a 61.00 cm × 152.3 cm container at a rate of 1/3 Hz are captured in a 30 fps video, which are then analyzed frame by frame. The voids between grains at any given frame show two characteristic values (modes), wherein the first one corresponds to the void size in a stable configuration of sago grains, and the second one corresponds to the dynamic part of the pile where avalanches are formed. Insights from the experiment may be used to detect the occurrence of avalanches in the granular setup.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Physics at the front and center: Strengthening core values in physics research
18–21 August 2016, University of the Philippines Visayas, Iloilo City

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Article ID

SPP-2016-4B-04

Section

Complex Systems and Data Analytics

Published

2016-08-18

How to Cite

[1]

DC Biton, AB Tarun, and RC Batac, Statistics of void sizes and avalanche signatures in a slowly-driven open-sided granular pile, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-4B-04 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-4B-04.