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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 (Engelska)Ingår i: Chemical Engineering Science, ISSN 0009-2509, E-ISSN 1873-4405, Vol. 75, s. 309-317Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
2012. Vol. 75, s. 309-317
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Teknik och teknologier
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URN: urn:nbn:se:hkr:diva-12394DOI: 10.1016/j.ces.2012.03.045ISI: 000303826800033OAI: oai:DiVA.org:hkr-12394DiVA, id: diva2:733606
Tillgänglig från: 2014-07-10 Skapad: 2014-07-10 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

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Håkansson, Andreas

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