Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Estimation of turbulent fragmenting forces in a high-pressure homogenizer from computational fluid dynamics

Håkansson, Andreas LU ; Innings, Fredrik ; Revstedt, Johan LU ; Trägårdh, Christian LU and Bergenståhl, Björn LU (2012) In Chemical Engineering Science 75. p.309-317
Abstract
The aim of this study was to find models for turbulent fragmenting forces in the high-pressure homogeniser from data available in Computational Fluid Dynamics (CFD) simulations with Reynolds Averaged Navier Stokes (RANS) turbulence models. In addition to the more common RANS k-epsilon turbulence models, a Multi-scale k-epsilon model was tested since experimental investigations of the geometry imply large differences in behaviour between turbulent eddies of different length-scales. Empiric models for the driving hydrodynamic factors for turbulent fragmentation using the extra information given by multi-scale simulations were developed. These models are shown to give a more reasonable approximation of local fragmentation than models based on... (More)
The aim of this study was to find models for turbulent fragmenting forces in the high-pressure homogeniser from data available in Computational Fluid Dynamics (CFD) simulations with Reynolds Averaged Navier Stokes (RANS) turbulence models. In addition to the more common RANS k-epsilon turbulence models, a Multi-scale k-epsilon model was tested since experimental investigations of the geometry imply large differences in behaviour between turbulent eddies of different length-scales. Empiric models for the driving hydrodynamic factors for turbulent fragmentation using the extra information given by multi-scale simulations were developed. These models are shown to give a more reasonable approximation of local fragmentation than models based on the previously used RANS k-epsilon models when comparing to hydrodynamic measurements in an experimental model. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
High-pressure homogenisation, Homogenisation, Turbulence, Fragmentation, Hydrodynamics, Fluid mechanics
in
Chemical Engineering Science
volume
75
pages
309 - 317
publisher
Elsevier
external identifiers
  • wos:000303826800033
  • scopus:84859709798
ISSN
0009-2509
DOI
10.1016/j.ces.2012.03.045
language
English
LU publication?
yes
id
86e13b7d-a6fb-4bfa-b08e-95c37d772128 (old id 2812840)
date added to LUP
2016-04-01 13:06:38
date last changed
2023-11-12 12:13:49
@article{86e13b7d-a6fb-4bfa-b08e-95c37d772128,
  abstract     = {{The aim of this study was to find models for turbulent fragmenting forces in the high-pressure homogeniser from data available in Computational Fluid Dynamics (CFD) simulations with Reynolds Averaged Navier Stokes (RANS) turbulence models. In addition to the more common RANS k-epsilon turbulence models, a Multi-scale k-epsilon model was tested since experimental investigations of the geometry imply large differences in behaviour between turbulent eddies of different length-scales. Empiric models for the driving hydrodynamic factors for turbulent fragmentation using the extra information given by multi-scale simulations were developed. These models are shown to give a more reasonable approximation of local fragmentation than models based on the previously used RANS k-epsilon models when comparing to hydrodynamic measurements in an experimental model. (C) 2012 Elsevier Ltd. All rights reserved.}},
  author       = {{Håkansson, Andreas and Innings, Fredrik and Revstedt, Johan and Trägårdh, Christian and Bergenståhl, Björn}},
  issn         = {{0009-2509}},
  keywords     = {{High-pressure homogenisation; Homogenisation; Turbulence; Fragmentation; Hydrodynamics; Fluid mechanics}},
  language     = {{eng}},
  pages        = {{309--317}},
  publisher    = {{Elsevier}},
  series       = {{Chemical Engineering Science}},
  title        = {{Estimation of turbulent fragmenting forces in a high-pressure homogenizer from computational fluid dynamics}},
  url          = {{http://dx.doi.org/10.1016/j.ces.2012.03.045}},
  doi          = {{10.1016/j.ces.2012.03.045}},
  volume       = {{75}},
  year         = {{2012}},
}