完整後設資料紀錄
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dc.contributor.authorLi, Qianen_US
dc.contributor.authorCai, Weihuaen_US
dc.contributor.authorLi, Feng-Chenen_US
dc.contributor.authorLi, Bingxien_US
dc.contributor.authorChen, Ching-Yaoen_US
dc.date.accessioned2019-04-02T06:00:59Z-
dc.date.available2019-04-02T06:00:59Z-
dc.date.issued2019-01-04en_US
dc.identifier.issn2469-990Xen_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevFluids.4.014502en_US
dc.identifier.urihttp://hdl.handle.net/11536/148676-
dc.description.abstractA random process and highly accurate pseudospectral method associated with compact finite differences are incorporated to evaluate effects of permeability heterogeneity to gravity-driven miscible porous media flows. Flows in heterogeneous permeability fields, based on multiple sets of random realizations with identical statistical characteristics, are simulated to elucidate the global trend of mean quantities and local variations. The presence of heterogeneity provokes more prominent fingering competition and greater variation of fingers' widths, hence the mean values of interested quantitative measures, i.e., breakthrough time, amount of fluid volumes transported, and normalized mixing effectiveness, are generally reduced. Resonant effects, whose influences on the flow fields are the most significant, are verified to occur in an intermediate correlation length, in which the widths of fingers are slightly less than the correspondent correlation length. Nevertheless, under the resonant conditions these measures are the most widely scattered between different random realizations associated with the same control parameters. The widest scatterings are mainly because of the enhancing sensitivity of flow path selections under such resonant conditions, especially in a few realizations whose high or low permeability regions align along with or transverse to the main flow direction. The significant scatterings of these quantitative measures, which had drawn little attention previously, suggest more cautious treatments for practical implementations in the regime of resonant effects.en_US
dc.language.isoen_USen_US
dc.titleMiscible density-driven flows in heterogeneous porous media: Influences of correlation length and distribution of permeabilityen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevFluids.4.014502en_US
dc.identifier.journalPHYSICAL REVIEW FLUIDSen_US
dc.citation.volume4en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000455067200003en_US
dc.citation.woscount0en_US
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