A combined Euler-Euler Euler-Lagrange slurry model

Research output: Contribution to conferenceSpeech

Abstract

There has been a lot of work into modelling erosion caused by slurries, however these studies are normally focused on low concentrations. The reason is usually that dense slurries are too computationally expensive to model. This presentation suggests a novel solution to reduce computational effort, using OpenFOAM to combine two solvers. The two phases of the bulk flow are modelled in the Eulerian-Eulerian reference frame, whereas the near wall region is modelled in the Eulerian-Lagrangian frame. The method aims to reduce computational time, but still keep the necessary particle impact data at the wall required for erosion modelling. The new model consists of splitting the domain into two regions and using patch interpolation to couple them. The particles can then be injected into the second region by using the values of the second Eulerian phase from the first region. This process is carried out every time step, enabling it to be used in conjunction with geometry changes etc. as in Lopez’ work [1]. If the process can be validated, it provides a promising step towards modelling dense slurry erosion.
LanguageEnglish
Number of pages15
Publication statusPublished - 27 Jun 2016
Event11th OpenFOAM® Workshop - Guimarães, Portugal
Duration: 26 Jun 201630 Jun 2016
http://www.openfoamworkshop.org

Conference

Conference11th OpenFOAM® Workshop
CountryPortugal
CityGuimarães
Period26/06/1630/06/16
Internet address

Fingerprint

Erosion
Slurries
Interpolation
Geometry

Keywords

  • CFD modelling
  • slurry model
  • Euler-Euler
  • Euler-Lagrange

Cite this

MacKenzie, A., Lopez, A., Stickland, M., & Dempster, W. (2016). A combined Euler-Euler Euler-Lagrange slurry model. 11th OpenFOAM® Workshop, Guimarães, Portugal.
MacKenzie, Alasdair ; Lopez, Alejandro ; Stickland, Matthew ; Dempster, William. / A combined Euler-Euler Euler-Lagrange slurry model. 11th OpenFOAM® Workshop, Guimarães, Portugal.15 p.
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MacKenzie, A, Lopez, A, Stickland, M & Dempster, W 2016, 'A combined Euler-Euler Euler-Lagrange slurry model' 11th OpenFOAM® Workshop, Guimarães, Portugal, 26/06/16 - 30/06/16, .

A combined Euler-Euler Euler-Lagrange slurry model. / MacKenzie, Alasdair; Lopez, Alejandro; Stickland, Matthew; Dempster, William.

2016. 11th OpenFOAM® Workshop, Guimarães, Portugal.

Research output: Contribution to conferenceSpeech

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T1 - A combined Euler-Euler Euler-Lagrange slurry model

AU - MacKenzie, Alasdair

AU - Lopez, Alejandro

AU - Stickland, Matthew

AU - Dempster, William

PY - 2016/6/27

Y1 - 2016/6/27

N2 - There has been a lot of work into modelling erosion caused by slurries, however these studies are normally focused on low concentrations. The reason is usually that dense slurries are too computationally expensive to model. This presentation suggests a novel solution to reduce computational effort, using OpenFOAM to combine two solvers. The two phases of the bulk flow are modelled in the Eulerian-Eulerian reference frame, whereas the near wall region is modelled in the Eulerian-Lagrangian frame. The method aims to reduce computational time, but still keep the necessary particle impact data at the wall required for erosion modelling. The new model consists of splitting the domain into two regions and using patch interpolation to couple them. The particles can then be injected into the second region by using the values of the second Eulerian phase from the first region. This process is carried out every time step, enabling it to be used in conjunction with geometry changes etc. as in Lopez’ work [1]. If the process can be validated, it provides a promising step towards modelling dense slurry erosion.

AB - There has been a lot of work into modelling erosion caused by slurries, however these studies are normally focused on low concentrations. The reason is usually that dense slurries are too computationally expensive to model. This presentation suggests a novel solution to reduce computational effort, using OpenFOAM to combine two solvers. The two phases of the bulk flow are modelled in the Eulerian-Eulerian reference frame, whereas the near wall region is modelled in the Eulerian-Lagrangian frame. The method aims to reduce computational time, but still keep the necessary particle impact data at the wall required for erosion modelling. The new model consists of splitting the domain into two regions and using patch interpolation to couple them. The particles can then be injected into the second region by using the values of the second Eulerian phase from the first region. This process is carried out every time step, enabling it to be used in conjunction with geometry changes etc. as in Lopez’ work [1]. If the process can be validated, it provides a promising step towards modelling dense slurry erosion.

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KW - slurry model

KW - Euler-Euler

KW - Euler-Lagrange

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MacKenzie A, Lopez A, Stickland M, Dempster W. A combined Euler-Euler Euler-Lagrange slurry model. 2016. 11th OpenFOAM® Workshop, Guimarães, Portugal.