A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation

L. Jing; C. Y. Kwok; Yat Fai Leung

A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation

L. Jing, C. Y. Kwok, Yat Fai Leung

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions.

Original language	English
Title of host publication	Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
Publisher	Taylor and Francis - Balkema
Pages	485-490
Number of pages	6
Volume	1
ISBN (Print)	9781138027077
Publication status	Published - 1 Jan 2015
Event	International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 - Cambridge, United Kingdom Duration: 1 Sept 2014 → 3 Sept 2014

Conference

Conference	International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014
Country/Territory	United Kingdom
City	Cambridge
Period	1/09/14 → 3/09/14

ASJC Scopus subject areas

Geophysics

Cite this

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title = "A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation",

abstract = "A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions.",

author = "L. Jing and Kwok, {C. Y.} and Leung, {Yat Fai}",

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booktitle = "Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014",

publisher = "Taylor and Francis - Balkema",

note = "International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 ; Conference date: 01-09-2014 Through 03-09-2014",

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Jing, L, Kwok, CY & Leung, YF 2015, A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation. in Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. vol. 1, Taylor and Francis - Balkema, pp. 485-490, International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014, Cambridge, United Kingdom, 1/09/14.

A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation. / Jing, L.; Kwok, C. Y.; Leung, Yat Fai.
Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014. Vol. 1 Taylor and Francis - Balkema, 2015. p. 485-490.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation

AU - Jing, L.

AU - Kwok, C. Y.

AU - Leung, Yat Fai

PY - 2015/1/1

Y1 - 2015/1/1

N2 - A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions.

AB - A coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) model is presented for fluid-particle flows with free fluid surface. The fluid flow is modeled by solving the locally averaged Navier-Stokes equations, and the particle motions are captured separately in the DEM. Fluid-particle interactions are taken into consideration by exchanging necessary information between the CFD and the DEM. A numerical solver, referred to as cfdemSolverVOF in this study, is developed to capture the dynamics of the free fluid surface within the CFD-DEM framework. This is achieved by applying an advection equation to solve the volume fraction of the liquid in each fluid cell, in the spirit of the Volume of Fluid (VOF) method. Different components of the developed numerical solver are verified and validated in the dam break case and sedimentation of particle tests. The numerical predictions agree well with the analytical/empirical solutions.

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BT - Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014

PB - Taylor and Francis - Balkema

T2 - International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014

Y2 - 1 September 2014 through 3 September 2014

ER -

A coupled CFD-DEM model for fluid-particle flows with free surface: Formulation and validation

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ASJC Scopus subject areas

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