Sammanfattning
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.
Originalspråk | Engelska |
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Sidor (från-till) | 309-317 |
Antal sidor | 8 |
Tidskrift | Chemical Engineering Science |
Volym | 75 |
DOI | |
Status | Publicerad - 2012 |
Externt publicerad | Ja |
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- Teknik (2)