CFD simulation of horizontal oil-water flow with matched density and medium viscosity ratio in different flow regimes

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dc.contributor.authorShi, Jing
dc.contributor.authorGourma, Mustapha
dc.contributor.authorYeung, Hoi
dc.date.accessioned2017-01-17T12:32:04Z
dc.date.available2017-01-17T12:32:04Z
dc.date.issued2017-01-10
dc.description.abstractSimulation of horizontal oil-water flow with matched density and medium viscosity ratio (μo/μw=18.8) in several different flow regimes (core annular flow, oil plugs/bubbles in water and dispersed flow) was performed with the CFD package FLUENT in this study. The volume of fluid (VOF) multiphase flow modeling method in conjunction with the SST k-ω scheme was applied to simulate the oil-water flow. The influences of the turbulence schemes and wall contact angles on the simulation results were investigated for a core annular flow (CAF) case. The SST k-ω turbulence scheme with turbulence damping at the interface gives better predictions than the standard k-ε and RNG k-ε models for the case under consideration. The flow regime of density-matched oil-water flow with medium viscosity ratio, or more generally speaking, the flow regime of fluids where the surface tension is playing a prevailing role is sensitive to the wall contact angle. Simulation results were compared with experimental counterparts. Satisfactory agreement in the prediction of flow patterns were obtained for CAF and oil plugs/bubbles in water. The simulation results also demonstrated some detailed flow characteristics of CAF with relatively low-viscosity oil (oil viscosity one order higher than the water viscosity in the present study compared to the extensively studied CAF with oil viscosity being two to three orders higher than the water viscosity). Different from the velocity profiles of high-viscosity oil CAF where there is sharp change in the velocity gradient at the phase interface with velocity across the oil core being roughly flat, there is no sharp change in the velocity gradient at the phase interface for CAF with relatively low-viscosity oil.en_UK
dc.identifier.citationJing Shi, Mustapha Gourma, Hoi Yeung, CFD simulation of horizontal oil-water flow with matched density and medium viscosity ratio in different flow regimes, Journal of Petroleum Science and Engineering, Volume 151, March 2017, Pages 373 - 383.en_UK
dc.identifier.issn0920-4105
dc.identifier.urihttp://dx.doi.org/10.1016/j.petrol.2017.01.022
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11285
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectOil-wateren_UK
dc.subjectComputational fluid dynamics (CFD)en_UK
dc.subjectVolume of fluid (VOF)en_UK
dc.subjectFlow patternen_UK
dc.subjectCore annular flow (CAF)en_UK
dc.titleCFD simulation of horizontal oil-water flow with matched density and medium viscosity ratio in different flow regimesen_UK
dc.typeArticleen_UK

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