Vis enkel innførsel

dc.contributor.authorViggiano, Bianca
dc.contributor.authorSkjæraasen, Olaf
dc.contributor.authorSchümann, Heiner
dc.contributor.authorTutkun, Murat
dc.contributor.authorCal, Raúl Bayoán
dc.date.accessioned2020-12-17T13:00:08Z
dc.date.available2020-12-17T13:00:08Z
dc.date.created2018-05-04T08:44:06Z
dc.date.issued2018
dc.identifier.citationInternational Journal of Multiphase Flow. 2018, 105 91-101.en_US
dc.identifier.issn0301-9322
dc.identifier.urihttps://hdl.handle.net/11250/2720058
dc.description.abstractTwo-phase dispersed and slug flows in a pipe are investigated using proper orthogonal decomposition (POD). The data are acquired through tomographic reconstruction of X-ray measurements, where holdup, cross-sectional phase distributions and phase interface characteristics are obtained. Instantaneous phase fractions of the flow fields are analyzed and reduced-order descriptions of the flow are achieved. The dispersed flow displays coherent features for the first few modes near the center of the pipe, representing the liquid-liquid interface location while the slug flow case shows coherent features that correspond to the cyclical formation of the slug in the first ten modes. For slug flow, the first two modes capture the liquid-dominated slug body region and the Taylor bubble/liquid film region, respectively. The reconstructions of the fields indicate that main features are observed in the low order descriptions utilizing less than one percent of the degrees of freedom of the full order descriptions. POD temporal coefficients a1, a2 and a3 show interdependence for the slug flow case. The coefficients also describe the phase fraction holdup as a function of time for both dispersed and slug flow.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.subjectReduced-order descriptionen_US
dc.subjectProper orthogonal decompositionen_US
dc.subjectX-ray computed tomographyen_US
dc.subjectMultiphase flowen_US
dc.subjectTwo-phase flowen_US
dc.subjectDispersed flowen_US
dc.subjectSlug flowen_US
dc.titleCharacterization of flow dynamics and reduced-order description of experimental two-phase pipe flowen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holderThis is the accepted manuscript of the article published and available, see: https://doi.org/10.1016/j.ijmultiphaseflow.2018.03.020en_US
dc.source.pagenumber91-101en_US
dc.source.volume105en_US
dc.source.journalInternational Journal of Multiphase Flowen_US
dc.identifier.doi10.1016/j.ijmultiphaseflow.2018.03.020
dc.identifier.cristin1583361
cristin.unitcode7401,80,40,0
cristin.unitnameProsessteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal