The Experiment of the Clog Reduction in a Plane Silo

The flow of particles may be clogged when they pass through a narrow orifice. Many factors can change the probability of clogging, such as the outlet size, the presence of obstacles and external perturbation, but the detailed mechanisms are still unclear. In this paper, we present an experimental st...

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Main Authors: Sun Ai-Le, Zhang Jie
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714003024
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author Sun Ai-Le
Zhang Jie
author_facet Sun Ai-Le
Zhang Jie
author_sort Sun Ai-Le
collection DOAJ
description The flow of particles may be clogged when they pass through a narrow orifice. Many factors can change the probability of clogging, such as the outlet size, the presence of obstacles and external perturbation, but the detailed mechanisms are still unclear. In this paper, we present an experimental study of reduction of the clogging probability in a horizontal plane silo, which consists of a layer of elastic particles transported on an annular flat plate rotating with a constant angular velocity passing through a hopper structure. We found the exponential distributions of the avalanche size for different sizes of orifice and the power law tails of the passing time between two particles. We did not confirm whether there was a critical size of orifice above which the clogging became impossible. We explored the effect of the obstacle on the probability of clogging: and if we chose a proper obstacle placed at a proper position, the probability of clogging could be reduced by a factor of about seven.
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spelling doaj.art-912d167f92764a4a9f59feb71bf3312b2022-12-21T22:31:27ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400302410.1051/epjconf/201714003024epjconf162039The Experiment of the Clog Reduction in a Plane SiloSun Ai-Le0Zhang JieDepartment of Physics and Astronomy, Shanghai Jiao Tong UniversityThe flow of particles may be clogged when they pass through a narrow orifice. Many factors can change the probability of clogging, such as the outlet size, the presence of obstacles and external perturbation, but the detailed mechanisms are still unclear. In this paper, we present an experimental study of reduction of the clogging probability in a horizontal plane silo, which consists of a layer of elastic particles transported on an annular flat plate rotating with a constant angular velocity passing through a hopper structure. We found the exponential distributions of the avalanche size for different sizes of orifice and the power law tails of the passing time between two particles. We did not confirm whether there was a critical size of orifice above which the clogging became impossible. We explored the effect of the obstacle on the probability of clogging: and if we chose a proper obstacle placed at a proper position, the probability of clogging could be reduced by a factor of about seven.https://doi.org/10.1051/epjconf/201714003024
spellingShingle Sun Ai-Le
Zhang Jie
The Experiment of the Clog Reduction in a Plane Silo
EPJ Web of Conferences
title The Experiment of the Clog Reduction in a Plane Silo
title_full The Experiment of the Clog Reduction in a Plane Silo
title_fullStr The Experiment of the Clog Reduction in a Plane Silo
title_full_unstemmed The Experiment of the Clog Reduction in a Plane Silo
title_short The Experiment of the Clog Reduction in a Plane Silo
title_sort experiment of the clog reduction in a plane silo
url https://doi.org/10.1051/epjconf/201714003024
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