Experiments and simulations of settling cylinders over a wide range of Archimedes numbers

Jinghan  Xie; Lijuan Zhang; Menghua  Lu; Shanghai University of Science; Jacobus Derksen

doi:10.1002/cjce.24544

Experiments and simulations of settling cylinders over a wide range of Archimedes numbers

Jinghan Xie, Lijuan Zhang^* (Corresponding Author), Menghua Lu, Shanghai University of Science^* (Corresponding Author), Jacobus Derksen

^*Corresponding author for this work

Engineering

Shanghai University of Engineering Science

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Quantitative visualization experiments and particle-resolved simulations of rigid cylindrical particles settling in a Newtonian liquid have been conducted. By varying the viscosity of the liquid – a glycerol-water mixture – as well as the density of the cylinders we were able to cover an Archimedes number range that spans almost 6 orders of magnitude in the experiments. The length over diameter aspect ratio of the cylinders ranged from 2.5 to 20. Cylinders were released vertically and rotated to a stable horizontal orientation in most of the lower viscosity solutions. The time required for reaching a horizontal orientation, as well as the Reynolds number at that stage scale with the Archimedes number and only weakly depend on the aspect ratio. Particle-resolved numerical simulations based on the lattice-Boltzmann
method complement the experimental study and illustrate the relevance of the experimental data as a benchmark for numerical approaches to solid-liquid flow with non-spherical particles.

Original language	English
Pages (from-to)	2240-2249
Number of pages	10
Journal	Canadian journal of chemical engineering
Volume	101
Issue number	4
Early online date	13 Jul 2022
DOIs	https://doi.org/10.1002/cjce.24544
Publication status	Published - 1 Apr 2023

Bibliographical note

This work was supported by the National Natural Science Foundation of China (Nos.
22078191, 21978165, 22081340412).

Keywords

Solid-liquid flow
sedimentation
visualization experiments
particle-resolved simulation
computational fluid dynamics

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Cite this

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title = "Experiments and simulations of settling cylinders over a wide range of Archimedes numbers",

abstract = "Quantitative visualization experiments and particle-resolved simulations of rigid cylindrical particles settling in a Newtonian liquid have been conducted. By varying the viscosity of the liquid – a glycerol-water mixture – as well as the density of the cylinders we were able to cover an Archimedes number range that spans almost 6 orders of magnitude in the experiments. The length over diameter aspect ratio of the cylinders ranged from 2.5 to 20. Cylinders were released vertically and rotated to a stable horizontal orientation in most of the lower viscosity solutions. The time required for reaching a horizontal orientation, as well as the Reynolds number at that stage scale with the Archimedes number and only weakly depend on the aspect ratio. Particle-resolved numerical simulations based on the lattice-Boltzmannmethod complement the experimental study and illustrate the relevance of the experimental data as a benchmark for numerical approaches to solid-liquid flow with non-spherical particles. ",

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author = "Jinghan Xie and Lijuan Zhang and Menghua Lu and Science, {Shanghai University of} and Jacobus Derksen",

note = "This work was supported by the National Natural Science Foundation of China (Nos. 22078191, 21978165, 22081340412).",

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doi = "10.1002/cjce.24544",

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AU - Xie, Jinghan

AU - Zhang, Lijuan

AU - Lu, Menghua

AU - Science, Shanghai University of

AU - Derksen, Jacobus

N1 - This work was supported by the National Natural Science Foundation of China (Nos. 22078191, 21978165, 22081340412).

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N2 - Quantitative visualization experiments and particle-resolved simulations of rigid cylindrical particles settling in a Newtonian liquid have been conducted. By varying the viscosity of the liquid – a glycerol-water mixture – as well as the density of the cylinders we were able to cover an Archimedes number range that spans almost 6 orders of magnitude in the experiments. The length over diameter aspect ratio of the cylinders ranged from 2.5 to 20. Cylinders were released vertically and rotated to a stable horizontal orientation in most of the lower viscosity solutions. The time required for reaching a horizontal orientation, as well as the Reynolds number at that stage scale with the Archimedes number and only weakly depend on the aspect ratio. Particle-resolved numerical simulations based on the lattice-Boltzmannmethod complement the experimental study and illustrate the relevance of the experimental data as a benchmark for numerical approaches to solid-liquid flow with non-spherical particles.

AB - Quantitative visualization experiments and particle-resolved simulations of rigid cylindrical particles settling in a Newtonian liquid have been conducted. By varying the viscosity of the liquid – a glycerol-water mixture – as well as the density of the cylinders we were able to cover an Archimedes number range that spans almost 6 orders of magnitude in the experiments. The length over diameter aspect ratio of the cylinders ranged from 2.5 to 20. Cylinders were released vertically and rotated to a stable horizontal orientation in most of the lower viscosity solutions. The time required for reaching a horizontal orientation, as well as the Reynolds number at that stage scale with the Archimedes number and only weakly depend on the aspect ratio. Particle-resolved numerical simulations based on the lattice-Boltzmannmethod complement the experimental study and illustrate the relevance of the experimental data as a benchmark for numerical approaches to solid-liquid flow with non-spherical particles.

KW - Solid-liquid flow

KW - sedimentation

KW - visualization experiments

KW - particle-resolved simulation

KW - computational fluid dynamics

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JO - Canadian journal of chemical engineering

JF - Canadian journal of chemical engineering

IS - 4

ER -

Experiments and simulations of settling cylinders over a wide range of Archimedes numbers

Abstract

Bibliographical note

Keywords

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