Reference : A Multiscale DEM-VOF Method for the simulation of three-phase flows
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Computational Sciences
http://hdl.handle.net/10993/32611
A Multiscale DEM-VOF Method for the simulation of three-phase flows
English
Pozzetti, Gabriele mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Peters, Bernhard mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
9-Jan-2018
International Journal of Multiphase Flow
Pergamon Press - An Imprint of Elsevier Science
99
186-204
Yes (verified by ORBilu)
International
0301-9322
[en] Multiphase flow ; CFD-DEM ; Grid Convergence ; Multiscale simulation ; DEM-VOF method ; Dual-Grid-CFD-DEM
[en] A novel multiscale approach for three-phase flows is presented. The goal of the proposed method is to solve arbitrary three-phase flow configurations in a computationally efficient way, and in particular taking into account the effects of different length scales while sharply reducing the computational burden. This is particularly important in chemical, environmental, and process engineering, where large-scale quantities are normally of interest, but small-scale dynamics cannot be neglected. The method is based on the definition of two different length scales: the bulk scale, and the fluid fine scale. A dual-grid approach is adopted in order to resolve the bulk scale with information from the fluid fine scale. It is shown that the described method
succeeds in delivering more accuracy than a standard approach based on the volume averaging technique, still, it remains suitable for the solution of real interest problems. The method is shown to successfully satisfy experimental results presented in the literature. Examples of three-phase flows simulations are provided to show how the proposed numerical approach can describe the physics of particle-laden, free surface flows with competitive computational cost. It is shown how the proposed method can naturally extend the DEM-VOF method to the presence of complex interface dynamics.
Researchers ; Professionals
http://hdl.handle.net/10993/32611
10.1016/j.ijmultiphaseflow.2017.10.008
http://www.sciencedirect.com/science/article/pii/S0301932216307327

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
articleRevised.pdfAuthor preprint4.79 MBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.