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dc.contributor.authorRoy, Subhadeep
dc.contributor.authorSinha, Santanu
dc.contributor.authorHansen, Alex
dc.date.accessioned2022-02-11T12:49:10Z
dc.date.available2022-02-11T12:49:10Z
dc.date.created2021-09-26T08:30:57Z
dc.date.issued2021
dc.identifier.citationFrontiers in water. 2021, 3 .en_US
dc.identifier.urihttps://hdl.handle.net/11250/2978487
dc.description.abstractImmiscible two-phase flow of Newtonian fluids in porous media exhibits a power law relationship between flow rate and pressure drop when the pressure drop is such that the viscous forces compete with the capillary forces. When the pressure drop is large enough for the viscous forces to dominate, there is a crossover to a linear relation between flow rate and pressure drop. Different values for the exponent relating the flow rate and pressure drop in the regime where the two forces compete have been reported in different experimental and numerical studies. We investigate the power law and its exponent in immiscible steady-state two-phase flow for different pore size distributions. We measure the values of the exponent and the crossover pressure drop for different fluid saturations while changing the shape and the span of the distribution. We consider two approaches, analytical calculations using a capillary bundle model and numerical simulations using dynamic pore-network modeling. In case of the capillary bundle when the pores do not interact to each other, we find that the exponent is always equal to 3/2 irrespective of the distribution type. For the dynamical pore network model on the other hand, the exponent varies continuously within a range when changing the shape of the distribution whereas the width of the distribution controls the crossover point.en_US
dc.language.isoengen_US
dc.publisherFrontiersen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleRole of Pore-Size Distribution on Effective Rheology of Two-Phase Flow in Porous Mediaen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber11en_US
dc.source.volume3en_US
dc.source.journalFrontiers in wateren_US
dc.identifier.doi10.3389/frwa.2021.709833
dc.identifier.cristin1938628
dc.relation.projectNorges forskningsråd: 262644en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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