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dc.contributor.authorLiu, Yang
dc.contributor.authorZou, Shuangmei
dc.contributor.authorHe, Ying
dc.contributor.authorSun, Shuyu
dc.contributor.authorJu, Yang
dc.contributor.authorMeng, Qingbang
dc.contributor.authorCai, Jianchao
dc.date.accessioned2020-11-16T11:36:11Z
dc.date.available2020-11-16T11:36:11Z
dc.date.issued2020-10-22
dc.date.submitted2020-05-11
dc.identifier.citationLiu, Y., Zou, S., He, Y., Sun, S., Ju, Y., Meng, Q., & Cai, J. (2021). Influence of fractal surface roughness on multiphase flow behavior: Lattice Boltzmann simulation. International Journal of Multiphase Flow, 134, 103497. doi:10.1016/j.ijmultiphaseflow.2020.103497
dc.identifier.issn0301-9322
dc.identifier.doi10.1016/j.ijmultiphaseflow.2020.103497
dc.identifier.urihttp://hdl.handle.net/10754/665967
dc.description.abstractAccurate characterization of surface roughness and understanding its influence on multiphase flow behavior are important for industrial and environmental applications such as enhanced oil recovery, CO2 geological sequestration, and remediation of contaminated aquifers. Although some experimental and simulation studies have been conducted for investigating surface roughness in regular geometry structures, a more realistic description of roughness and its quantitative influence on multiphase flow need to be further explored. In this study, an optimized color-gradient lattice Boltzmann model is applied to simulate the steady-state two-phase flow in two-dimensional porous media modeled by a fourth-order Sierpinski carpet. The model is validated by comparing with the analytical solution and literature results, indicating reliability of our method. Then, rough surfaces with different roughness height and surface fractal dimension are characterized by a modified Weierstrass-Mandelbrot function and these effects on two-phase flow are investigated systematically by our model. The results show that the surface roughness has a negative effect on single-phase and two-phase fluid flow, which implies that the absolute and relative permeabilities for both wetting phase and nonwetting phase decreases with the increase of roughness height or surface fractal dimension. In addition, the surface roughness has influence on the two-phase distribution, velocity distribution and fluid-fluid/fluid-solid interface area, especially under the neutral wetting condition. Our study provides a pore-scale insight into the effect of surface roughness on two-phase flow, which is important for a fundamental understanding on macroscopic multiphase flow behaviors.
dc.description.sponsorshipThis work is supported from the National Natural Science Foundation of China (Nos. 51874262 and 51727807), the Fundamental Research Funds for the Central Universities (No. CUGGC04), and the Hubei Provincial Natural Science Foundation of China (No. 2018CFA051).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S030193222030608X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Multiphase Flow. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Multiphase Flow, [134, , (2020-10-22)] DOI: 10.1016/j.ijmultiphaseflow.2020.103497 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleInfluence of fractal surface roughness on multiphase flow behavior: Lattice Boltzmann simulation
dc.typeArticle
dc.contributor.departmentComputational Transport Phenomena Lab
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalInternational Journal of Multiphase Flow
dc.rights.embargodate2022-11-05
dc.eprint.versionPost-print
dc.contributor.institutionaInstitute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, PR China
dc.contributor.institutionbKey Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, PR China
dc.contributor.institutioncResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, PR China
dc.contributor.institutioneState Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, PR China
dc.contributor.institutionfState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, PR China
dc.identifier.volume134
dc.identifier.pages103497
kaust.personSun, Shuyu
dc.date.accepted2020-10-14
dc.identifier.eid2-s2.0-85095425399
refterms.dateFOA2020-11-18T05:13:58Z


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