The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers

Bladed mixers are widely used in the industry for granular mixing. In the past decades, the mixing of particles in bladed mixers has been extensively investigated experimentally and numerically. Recently, GPU-based DEM has been employed to simulate various industrial-scale applications. This work ai...

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Main Authors: Herman Angga, Gan Jieqing, Yu Aibing
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03036.pdf
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author Herman Angga
Gan Jieqing
Yu Aibing
author_facet Herman Angga
Gan Jieqing
Yu Aibing
author_sort Herman Angga
collection DOAJ
description Bladed mixers are widely used in the industry for granular mixing. In the past decades, the mixing of particles in bladed mixers has been extensively investigated experimentally and numerically. Recently, GPU-based DEM has been employed to simulate various industrial-scale applications. This work aims to apply the GPU-based DEM to investigate the effect of rotation speed and mixer size on granular mixing in bladed mixers of different sizes. The simulation in a larger mixer revealed distinct particle flow patterns that well-describe the mixing mechanism which is difficult to observe in a smaller mixer. The Lacey’s mixing index curves revealed a delay in mixing as the mixer size increases. The mixing rate decreases as the mixer size increases and it can be improved with increasing rotation speed. The average particle velocity increase significantly with increasing rotation speed and mixer size.
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spelling doaj.art-749d8192c03748cab2ee49c2f350ec3d2022-12-21T18:32:53ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490303610.1051/epjconf/202124903036epjconf_pg2021_03036The effect of rotation speed and mixer size on granular flow and mixing in bladed mixersHerman Angga0Gan Jieqing1Yu Aibing2Laboratory of Simulation and Modelling of Particulate System, ARC Hub for Computational Particle Technology, Department of Chemical Engineering, Monash UniversityLaboratory of Simulation and Modelling of Particulate System, ARC Hub for Computational Particle Technology, Department of Chemical Engineering, Monash UniversityLaboratory of Simulation and Modelling of Particulate System, ARC Hub for Computational Particle Technology, Department of Chemical Engineering, Monash UniversityBladed mixers are widely used in the industry for granular mixing. In the past decades, the mixing of particles in bladed mixers has been extensively investigated experimentally and numerically. Recently, GPU-based DEM has been employed to simulate various industrial-scale applications. This work aims to apply the GPU-based DEM to investigate the effect of rotation speed and mixer size on granular mixing in bladed mixers of different sizes. The simulation in a larger mixer revealed distinct particle flow patterns that well-describe the mixing mechanism which is difficult to observe in a smaller mixer. The Lacey’s mixing index curves revealed a delay in mixing as the mixer size increases. The mixing rate decreases as the mixer size increases and it can be improved with increasing rotation speed. The average particle velocity increase significantly with increasing rotation speed and mixer size.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03036.pdf
spellingShingle Herman Angga
Gan Jieqing
Yu Aibing
The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
EPJ Web of Conferences
title The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
title_full The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
title_fullStr The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
title_full_unstemmed The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
title_short The effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
title_sort effect of rotation speed and mixer size on granular flow and mixing in bladed mixers
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03036.pdf
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