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dc.contributor.authorHua, Jinsong
dc.contributor.authorNordbø, Jørgen
dc.contributor.authorFoss, Martin
dc.date.accessioned2017-11-08T08:45:34Z
dc.date.available2017-11-08T08:45:34Z
dc.date.issued2015
dc.identifier.issn2387-4295
dc.identifier.urihttp://hdl.handle.net/11250/2464807
dc.description.abstractSlug flow is encountered frequently during multiphase fluid transport in pipes. The gas entrainment process at a slug front significantly affects the hydrodynamic behaviour of slug flows. Due to the complexity of the flow physics and the dynamic coupling of the affecting factors, the mechanism by which these factors contribute to the gas entrainment process is not clearly understood. Typical factors affecting the gas entrainment are pipe inclination, Taylor bubble propagation and liquid film. Current experiments are not able to clarify the effect of these factors on the flow characteristics of slugs. Hence, a computational fluid dynamics based numerical method is applied in this paper to simulate the gas entrainment process at the slug front. The objective is to investigate the factors affecting the gas entrainment. A 2D numerical model is created using a commercial CFD package Star-CCM+. To capture the dynamic behaviour of liquid-gas interface at the slug front, the volume of fluid (VOF) model with relatively fine mesh and small time step is used. The simulation results show that the turbulent kinetic energy at the slug front is closely related to the gas entrainment rate. The effects of pipe inclination, Taylor bubble propagation and liquid film flow parameters on the turbulent kinetic energy generation and gas entrainment process at the slug front are also discussed.nb_NO
dc.description.sponsorshipACKNOWLEDGEMENT. The authors would like to thank the support from the FACE center - a research cooperation between IFE, NTNU and SINTEF, funded by The Research Council of Norway, and by the following industrial partners: Statoil ASA, GE Oil&Gas, Schlumberger, FMC technologies, CD-adapco, and Shell Technology Norway AS.nb_NO
dc.language.isoengnb_NO
dc.publisherSINTEF Academic Pressnb_NO
dc.relation.ispartofseriesSINTEF Proceedings;1
dc.subjectCFDnb_NO
dc.subjectSlug flownb_NO
dc.subjectGas entrainmentnb_NO
dc.subjectTwo-phase flownb_NO
dc.subjectVOF methodnb_NO
dc.titleCFD modelling of gas entrainment at a propagating slug frontnb_NO
dc.typeChapternb_NO
dc.typeConference objectnb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holder© 2015 SINTEF Academic Pressnb_NO
dc.subject.nsiVDP::Technology: 500nb_NO


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