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dc.contributor.author
Krepper, E.
dc.contributor.author
Ruyer, P.
dc.contributor.author
Beyer, M.
dc.contributor.author
Lucas, D.
dc.contributor.author
Prasser, H.-M.
dc.contributor.author
Seiler, N.
dc.date.accessioned
2023-07-14T09:08:00Z
dc.date.available
2017-06-08T23:25:51Z
dc.date.available
2023-07-14T09:08:00Z
dc.date.issued
2009
dc.identifier.issn
1687-6075
dc.identifier.other
10.1155/2009/320738
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/19111
dc.identifier.doi
10.3929/ethz-b-000019111
dc.description.abstract
This paper concerns the model of a polydispersed bubble population in the frame of an ensemble averaged two-phase flow formulation. The ability of the moment density approach to represent bubble population size distribution within a multi-dimensional CFD code based on the two-fluid model is studied. Two different methods describing the polydispersion are presented: (i) a moment density method, developed at IRSN, to model the bubble size distribution function and (ii) a population balance method considering several different velocity fields of the gaseous phase. The first method is implemented in the Neptune_CFD code, whereas the second method is implemented in the CFD code ANSYS/CFX. Both methods consider coalescence and breakup phenomena and momentum interphase transfers related to drag and lift forces. Air-water bubbly flows in a vertical pipe with obstacle of the TOPFLOW experiments series performed at FZD are then used as simulations test cases. The numerical results, obtained with Neptune_CFD and with ANSYS/CFX, allow attesting the validity of the approaches. Perspectives concerning the improvement of the models, their validation, as well as the extension of their applicability range are discussed.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Hindawi
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
CFD simulation of polydispersed bubbly two-phase flow around an obstacle
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2008-10-14
ethz.journal.title
Science and Technology of Nuclear Installations
ethz.journal.volume
2009
en_US
ethz.pages.start
320738
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03725 - Prasser, Horst-Michael (emeritus) / Prasser, Horst-Michael (emeritus)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03725 - Prasser, Horst-Michael (emeritus) / Prasser, Horst-Michael (emeritus)
ethz.date.deposited
2017-06-08T23:26:06Z
ethz.source
ECIT
ethz.identifier.importid
imp59364c9df387539328
ethz.ecitpid
pub:31392
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T17:15:27Z
ethz.rosetta.lastUpdated
2024-02-03T01:41:19Z
ethz.rosetta.versionExported
true
ethz.COinS
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