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Estimation of turbulent fragmenting forces in a high-pressure homogenizer from computational fluid dynamics
- Source :
-
Chemical Engineering Science . Jun2012, Vol. 75, p309-317. 9p. - Publication Year :
- 2012
-
Abstract
- 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–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. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00092509
- Volume :
- 75
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Science
- Publication Type :
- Academic Journal
- Accession number :
- 75011439
- Full Text :
- https://doi.org/10.1016/j.ces.2012.03.045