Simulations of dense agitated solid-liquid suspensions: effects of the distribution of particle sizes

J. J. Derksen

doi:10.1016/j.ces.2018.05.053

Simulations of dense agitated solid-liquid suspensions: effects of the distribution of particle sizes

J. J. Derksen

Engineering

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9 Citations (Scopus)

6 Downloads (Pure)

Abstract

We perform Eulerian-Lagrangian simulations of solid-liquid flow in a mixing tank. The simulations are three-dimensional and time dependent and in the transitional flow regime. The lattice-Boltzmann method is used to solve the volume-averaged Navier-Stokes equations. The overall solids volume fraction is of the order of 10%. Situations with the solids only partly suspended are compared to those with fully suspended solids. The emphasis is on the effect of the particle size distribution (PSD) on the suspension behavior. Four PSD’s all having the same d32 were investigated. It is harder to fully suspend particles with wider size distribution as compared to narrow distributions.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Chemical Engineering Science
Volume	189
Early online date	26 May 2018
DOIs	https://doi.org/10.1016/j.ces.2018.05.053
Publication status	Published - 2 Nov 2018

Keywords

solid-liquid suspension
lattice-Boltzmann method
discrete particle method
particle size distribution
two-way coupling
agitated suspensions

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© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 3.68 MBLicence: CC BY-NC-ND

Cite this

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title = "Simulations of dense agitated solid-liquid suspensions: effects of the distribution of particle sizes",

abstract = "We perform Eulerian-Lagrangian simulations of solid-liquid flow in a mixing tank. The simulations are three-dimensional and time dependent and in the transitional flow regime. The lattice-Boltzmann method is used to solve the volume-averaged Navier-Stokes equations. The overall solids volume fraction is of the order of 10%. Situations with the solids only partly suspended are compared to those with fully suspended solids. The emphasis is on the effect of the particle size distribution (PSD) on the suspension behavior. Four PSD{\textquoteright}s all having the same d32 were investigated. It is harder to fully suspend particles with wider size distribution as compared to narrow distributions.",

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T2 - effects of the distribution of particle sizes

AU - Derksen, J. J.

PY - 2018/11/2

Y1 - 2018/11/2

N2 - We perform Eulerian-Lagrangian simulations of solid-liquid flow in a mixing tank. The simulations are three-dimensional and time dependent and in the transitional flow regime. The lattice-Boltzmann method is used to solve the volume-averaged Navier-Stokes equations. The overall solids volume fraction is of the order of 10%. Situations with the solids only partly suspended are compared to those with fully suspended solids. The emphasis is on the effect of the particle size distribution (PSD) on the suspension behavior. Four PSD’s all having the same d32 were investigated. It is harder to fully suspend particles with wider size distribution as compared to narrow distributions.

AB - We perform Eulerian-Lagrangian simulations of solid-liquid flow in a mixing tank. The simulations are three-dimensional and time dependent and in the transitional flow regime. The lattice-Boltzmann method is used to solve the volume-averaged Navier-Stokes equations. The overall solids volume fraction is of the order of 10%. Situations with the solids only partly suspended are compared to those with fully suspended solids. The emphasis is on the effect of the particle size distribution (PSD) on the suspension behavior. Four PSD’s all having the same d32 were investigated. It is harder to fully suspend particles with wider size distribution as compared to narrow distributions.

KW - solid-liquid suspension

KW - lattice-Boltzmann method

KW - discrete particle method

KW - particle size distribution

KW - two-way coupling

KW - agitated suspensions

U2 - 10.1016/j.ces.2018.05.053

DO - 10.1016/j.ces.2018.05.053

M3 - Article

SN - 0009-2509

VL - 189

SP - 56

EP - 64

JO - Chemical Engineering Science

JF - Chemical Engineering Science

ER -

Simulations of dense agitated solid-liquid suspensions: effects of the distribution of particle sizes

Abstract

Keywords

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