In this paper we present detailed Euler-Euler Large Eddy Simulations (LES) of dispersed bubbly flow in a rectangular bubble column. The motivation of this study is to investigate potential of this approach for the prediction of bubbly flows, in terms of mean quantities. The set of physical models describing the momentum exchange between the phases was chosen according to previous experiences of the authors. Experimental data, Euler-Lagrange LES and unsteady Euler-Euler Reynolds-Averaged Navier-Stokes model are used for comparison. It was found that the presented modelling combination provides good agreement with experimental data for the mean flow and liquid velocity fluctuations.
The energy spectrum made from the resolved velocity from Euler-Euler LES is presented and discussed.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:22219 |
| Date | 25 November 2014 |
| Creators | Ma, Tian, Ziegenhein, Thomas, Lucas, Dirk, Krepper, Eckhard, Fröhlich, Jochen |
| Contributors | Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text |
| Source | CFD4NRS-5, Zürich, Switzerland |
| Rights | info:eu-repo/semantics/openAccess |
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