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Estimation of turbulent fragmenting forces in a high-pressure homogenizer from computational fluid dynamics
Lunds universitet.ORCID iD: 0000-0002-0002-661X
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2012 (English)In: Chemical Engineering Science, ISSN 0009-2509, E-ISSN 1873-4405, Vol. 75, p. 309-317Article in journal (Refereed) Published
Abstract [en]

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–ε turbulence models, a Multi-scale k–ε 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–ε models when comparing to hydrodynamic measurements in an experimental model.

Place, publisher, year, edition, pages
2012. Vol. 75, p. 309-317
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Engineering and Technology
Identifiers
URN: urn:nbn:se:hkr:diva-12394DOI: 10.1016/j.ces.2012.03.045ISI: 000303826800033OAI: oai:DiVA.org:hkr-12394DiVA, id: diva2:733606
Available from: 2014-07-10 Created: 2014-07-10 Last updated: 2017-12-05Bibliographically approved

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Håkansson, Andreas

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