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dc.contributor.authorKarchniwy, Ewa Malgorzata
dc.contributor.authorKlimanek, Adam F.
dc.contributor.authorHaugen, Nils Erland L
dc.date.accessioned2020-02-10T12:09:45Z
dc.date.available2020-02-10T12:09:45Z
dc.date.created2019-10-28T09:30:20Z
dc.date.issued2019
dc.identifier.citationJournal of Fluid Mechanics. 2019, 874 1147-1168.nb_NO
dc.identifier.issn0022-1120
dc.identifier.urihttp://hdl.handle.net/11250/2640696
dc.description.abstractThe current work investigates how turbulence affects the mass transfer rate between inertial particles and fluid in a dilute, polydisperse particle system. Direct numerical simulations are performed in which all scales of turbulence are fully resolved and particles are represented in a Lagrangian reference frame. The results show that, similarly to a monodisperse system, the mass transfer rate between particles and fluid decreases as a result of particle clustering. This occurs when the flow time scale (based on the turbulence integral scale) is long relative to the chemical time scale, and is strongest when the particle time scale is one order of magnitude smaller than the flow time scale (i.e. the Stokes number is around 0.1). It is also found that for larger solid mass fractions, the clustering of the heavier particles is enhanced by the effect of drag force from the particles on the fluid (momentum back-reactions or two-way coupling). In particular, when two-way coupling is accounted for, locations of particles of different sizes are much more correlated, which leads to a stronger effect of clustering, and thus a greater reduction of the particle-fluid mass transfer rate. © 2019 Cambridge University Press.nb_NO
dc.language.isoengnb_NO
dc.publisherCambridge University Pressnb_NO
dc.titleThe effect of turbulence on mass transfer rates between inertial polydisperse particles and fluidnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1147-1168nb_NO
dc.source.volume874nb_NO
dc.source.journalJournal of Fluid Mechanicsnb_NO
dc.identifier.doi10.1017/jfm.2019.493
dc.identifier.cristin1741014
dc.description.localcode© 2019. This is the authors' accepted and refereed manuscript to the article. The final authenticated version is available online at: https://doi.org/10.1017/jfm.2019.493nb_NO
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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