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On the numerical simulation of acceleration-driven multi-fluid mixing
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
2006 (English)In: Multiphase Science and Technology, ISSN 0276-1459, E-ISSN 1943-6181, Vol. 18, no 3, 199-230 p.Article in journal (Refereed) Published
Abstract [en]

This paper is concerned with computational prediction of acceleration-induced multi-fluid mixing phenomena. Premises and performance of existing approaches are reviewed and analyzed with focus on a late phase behavior. We introduce a new framework whose central idea is to use an interfacial area transport equation (IATE) and a subgrid scale model (SGS) of multi-fluid turbulence to provide a natural transition from DNS-based simulation toward an effective-field model (EFM) and deeply into well-mixed states with continuous refinement of length scale. We present new results and important insights derived from our work on four platform technologies: DNS, EFM, IATE and SGS. We discuss the approach to ensure that developments in different areas effectively emerge and function seamlessly in an overall computational platform for multi-fluid mixing.

Place, publisher, year, edition, pages
2006. Vol. 18, no 3, 199-230 p.
Keyword [en]
Computational methods, Computer simulation, Fluid dynamics, Turbulence, Effective-field model (EFM), Interfacial area transport equation (IATE), Multi-fluid mixing, Subgrid scale model (SGS), Mixing
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-155983DOI: 10.1615/MultScienTechn.v18.i3.10ScopusID: 2-s2.0-33748998486OAI: diva2:765883

QC 20141125

Available from: 2014-11-25 Created: 2014-11-17 Last updated: 2015-10-13Bibliographically approved

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Dinh, Truc Nam
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