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Impact dynamics and power-law scaling behavior of wet agglomerates

We investigate the impact dynamics of a single wet agglomerate composed of primary spherical particles impacting a flat plane by using three-dimensional discrete element method simulations. The primary particle is assumed to be rigid and interacted with its near-neighboring particles by introducing...

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Main Authors:	Thanh-Trung Vo, Cuong T. Nguyen, Trung-Kien Nguyen, Van My Nguyen, Thi Lo Vu
Format:	Bài trích
Language:	eng
Published:	Computational Particle Mechanics 2021
Subjects:	Granular matter Agglomerate Discrete element method
Online Access:	https://link.springer.com/article/10.1007%2Fs40571-021-00427-9 https://dlib.phenikaa-uni.edu.vn/handle/PNK/2835 https://doi.org/10.1007/s40571-021-00427-9
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spelling	oai:localhost:PNK-28352022-08-17T05:54:37Z Impact dynamics and power-law scaling behavior of wet agglomerates Thanh-Trung Vo Cuong T. Nguyen Trung-Kien Nguyen Van My Nguyen Thi Lo Vu Granular matter Agglomerate Discrete element method We investigate the impact dynamics of a single wet agglomerate composed of primary spherical particles impacting a flat plane by using three-dimensional discrete element method simulations. The primary particle is assumed to be rigid and interacted with its near-neighboring particles by introducing approximate analytical expressions of capillary cohesion forces and lubrication forces induced from the liquid in addition to their elastic and frictional interactions. The paper analyzes the mechanical strength, the deformation, and the connectivity of wet particle agglomerate during the impact as well as in its early-stage impact and the final-stage deposition. We show that the mechanical strength, deformation, and connectivity of granule strongly depend on the key parameters (the liquid–vapor surface tension, the liquid viscosity, and the impact speed of agglomerate). In particular, the early-stage strength and the height of wet agglomerate at its final-stage deposition nicely behave as a function of the Capillary–Stokes inertial number that combines the Capillary number and Stokes number, and the macroscopic strength of the agglomerate at its early-stage impact has the microscopic origin from the normal compressive forces between primary particles. These observations are consistent that represent the relationship between the rheological properties and the liquid properties and the impact conditions of wet granular materials. 2021-09-13T04:24:49Z 2021-09-13T04:24:49Z 2021 Bài trích https://link.springer.com/article/10.1007%2Fs40571-021-00427-9 https://dlib.phenikaa-uni.edu.vn/handle/PNK/2835 https://doi.org/10.1007/s40571-021-00427-9 eng Computational Particle Mechanics
institution	Digital Phenikaa
collection	Digital Phenikaa
language	eng
topic	Granular matter Agglomerate Discrete element method
spellingShingle	Granular matter Agglomerate Discrete element method Thanh-Trung Vo Cuong T. Nguyen Trung-Kien Nguyen Van My Nguyen Thi Lo Vu Impact dynamics and power-law scaling behavior of wet agglomerates
description	We investigate the impact dynamics of a single wet agglomerate composed of primary spherical particles impacting a flat plane by using three-dimensional discrete element method simulations. The primary particle is assumed to be rigid and interacted with its near-neighboring particles by introducing approximate analytical expressions of capillary cohesion forces and lubrication forces induced from the liquid in addition to their elastic and frictional interactions. The paper analyzes the mechanical strength, the deformation, and the connectivity of wet particle agglomerate during the impact as well as in its early-stage impact and the final-stage deposition. We show that the mechanical strength, deformation, and connectivity of granule strongly depend on the key parameters (the liquid–vapor surface tension, the liquid viscosity, and the impact speed of agglomerate). In particular, the early-stage strength and the height of wet agglomerate at its final-stage deposition nicely behave as a function of the Capillary–Stokes inertial number that combines the Capillary number and Stokes number, and the macroscopic strength of the agglomerate at its early-stage impact has the microscopic origin from the normal compressive forces between primary particles. These observations are consistent that represent the relationship between the rheological properties and the liquid properties and the impact conditions of wet granular materials.
format	Bài trích
author	Thanh-Trung Vo Cuong T. Nguyen Trung-Kien Nguyen Van My Nguyen Thi Lo Vu
author_facet	Thanh-Trung Vo Cuong T. Nguyen Trung-Kien Nguyen Van My Nguyen Thi Lo Vu
author_sort	Thanh-Trung Vo
title	Impact dynamics and power-law scaling behavior of wet agglomerates
title_short	Impact dynamics and power-law scaling behavior of wet agglomerates
title_full	Impact dynamics and power-law scaling behavior of wet agglomerates
title_fullStr	Impact dynamics and power-law scaling behavior of wet agglomerates
title_full_unstemmed	Impact dynamics and power-law scaling behavior of wet agglomerates
title_sort	impact dynamics and power-law scaling behavior of wet agglomerates
publisher	Computational Particle Mechanics
publishDate	2021
url	https://link.springer.com/article/10.1007%2Fs40571-021-00427-9 https://dlib.phenikaa-uni.edu.vn/handle/PNK/2835 https://doi.org/10.1007/s40571-021-00427-9
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score	8.891787

Impact dynamics and power-law scaling behavior of wet agglomerates

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