| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Huang, Po Wei | - |
| dc.contributor.author | Flemisch, Bernd | - |
| dc.contributor.author | Qin, Chao Zhong | - |
| dc.contributor.author | Saar, Martin O. | - |
| dc.contributor.author | Ebigbo, Anozie | - |
| dc.date.accessioned | 2022-09-12T07:05:56Z | - |
| dc.date.available | 2022-09-12T07:05:56Z | - |
| dc.date.issued | 2022-09-01 | - |
| dc.identifier.issn | 0169-3913 | - |
| dc.identifier.issn | 1573-1634 | - |
| dc.description.abstract | Due to spatial scaling effects, there is a discrepancy in mineral dissolution rates measured at different spatial scales. Many reasons for this spatial scaling effect can be given. We investigate one such reason, i.e., how pore-scale spatial heterogeneity in porous media affects overall mineral dissolution rates. Using the bundle-of-tubes model as an analogy for porous media, we show that the Darcy-scale reaction order increases as the statistical similarity between the pore sizes and the effective-surface-area ratio of the porous sample decreases. The analytical results quantify mineral spatial heterogeneity using the Darcy-scale reaction order and give a mechanistic explanation to the usage of reaction order in Darcy-scale modeling. The relation is used as a constitutive relation of reactive transport at the Darcy scale. We test the constitutive relation by simulating flow-through experiments. The proposed constitutive relation is able to model the solute breakthrough curve of the simulations. Our results imply that we can infer mineral spatial heterogeneity of a porous media using measured solute concentration over time in a flow-through dissolution experiment. | - |
| dc.description.sponsorship | Hydromechanik | - |
| dc.language.iso | eng | - |
| dc.relation.ispartof | Transport in Porous Media | - |
| dc.subject | Mineral dissolution | - |
| dc.subject | Reaction rate law | - |
| dc.subject | Reactive transport | - |
| dc.subject | Upscaling | - |
| dc.title | Relating Darcy-Scale Chemical Reaction Order to Pore-Scale Spatial Heterogeneity | - |
| dc.type | Article | - |
| dc.identifier.doi | 10.1007/s11242-022-01817-0 | - |
| dc.identifier.pmid | 36051176 | - |
| dc.identifier.scopus | 2-s2.0-85134342159 | - |
| dcterms.bibliographicCitation.volume | 144 | - |
| dcterms.bibliographicCitation.pagestart | 507 | - |
| dcterms.bibliographicCitation.pageend | 543 | - |
| local.submission.type | only-metadata | - |
| dc.type.article | Scientific Article | - |
| hsu.peerReviewed | ✅ | - |
| item.grantfulltext | none | - |
| item.languageiso639-1 | en | - |
| item.fulltext_s | No Fulltext | - |
| item.openairetype | Article | - |
| item.fulltext | No Fulltext | - |
| crisitem.author.dept | Hydromechanik | - |
| crisitem.author.orcid | 0000-0003-3972-3786 | - |
| crisitem.author.parentorg | Fakultät für Maschinenbau und Bauingenieurwesen | - |
| Appears in Collections: | 3 - Publication references (without fulltext) | |
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