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dc.contributor.authorKuva, Jukka
dc.contributor.authorVoutilainen, Mikko
dc.contributor.authorMattila, Keijo
dc.date.accessioned2019-10-30T08:14:49Z
dc.date.available2019-10-30T08:14:49Z
dc.date.issued2019
dc.identifier.citationKuva, J., Voutilainen, M., & Mattila, K. (2019). Modeling mass transfer in fracture flows with the time domain-random walk method. <i>Computational Geosciences</i>, <i>23</i>(5), 953-967. <a href="https://doi.org/10.1007/s10596-019-09852-5" target="_blank">https://doi.org/10.1007/s10596-019-09852-5</a>
dc.identifier.otherCONVID_32303171
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/66107
dc.description.abstractThe time domain-random walk method was developed further for simulating mass transfer in fracture flows together with matrix diffusion in surrounding porous media. Specifically, a time domain-random walk scheme was developed for numerically approximating solutions of the advection-diffusion equation when the diffusion coefficient exhibits significant spatial variation or even discontinuities. The proposed scheme relies on second-order accurate, central-difference approximations of the advective and diffusive fluxes. The scheme was verified by comparing simulated results against analytical solutions in flow configurations involving a rectangular channel connected on one side with a porous matrix. Simulations with several flow rates, diffusion coefficients, and matrix porosities indicate good agreement between the numerical approximations and analytical solutions.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesComputational Geosciences
dc.rightsCC BY 4.0
dc.subject.othermatrix diffusion
dc.subject.otheradvection
dc.subject.otherporous media
dc.subject.othersolute transport
dc.subject.otherbreakthrough curve
dc.subject.othersimulation
dc.titleModeling mass transfer in fracture flows with the time domain-random walk method
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201910304672
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikkafi
dc.contributor.oppiainePhysicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange953-967
dc.relation.issn1420-0597
dc.relation.numberinseries5
dc.relation.volume23
dc.type.versionpublishedVersion
dc.rights.copyright© The Authors 2019
dc.rights.accesslevelopenAccessfi
dc.subject.ysovirtauslaskenta
dc.subject.ysokulkeutuminen
dc.subject.ysodiffuusio
dc.subject.ysosimulointi
dc.subject.ysohuokoisuus
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p21150
jyx.subject.urihttp://www.yso.fi/onto/yso/p13278
jyx.subject.urihttp://www.yso.fi/onto/yso/p18009
jyx.subject.urihttp://www.yso.fi/onto/yso/p4787
jyx.subject.urihttp://www.yso.fi/onto/yso/p13541
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1007/s10596-019-09852-5
jyx.fundinginformationFinancial support from the Finnish Research Programme on Nuclear Waste Management (KYT2018) is gratefully acknowledged.


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