Evaporation effect on two-dimensional wicking in porous media.
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| Title: | Evaporation effect on two-dimensional wicking in porous media. |
|---|---|
| Authors: | Benner, Eric M.1 ebenner@unm.edu, Petsev, Dimiter N.1 dimiter@unm.edu |
| Source: | Journal of Colloid & Interface Science. Mar2018, Vol. 514, p21-29. 9p. |
| Subjects: | Evaporation (Chemistry), Capillary flow, Porous materials, Potential flow, Chemical engineering |
| Abstract: | We analyze the effect of evaporation on expanding capillary flow for losses normal to the plane of a two-dimensional porous medium using the potential flow theory formulation of the Lucas–Washburn method. Evaporation induces a finite steady state liquid flux on capillary flows into fan-shaped domains which is significantly greater than the flux into media of constant cross section. We introduce the evaporation-capillary number, a new dimensionless quantity, which governs the frontal motion when multiplied by the scaled time. This governing product divides the wicking behavior into simple regimes of capillary dominated flow and evaporative steady state, as well as the intermediate regime of evaporation influenced capillary driven motion. We also show flow dimensionality and evaporation reduce the propagation rate of the wet front relative to the Lucas–Washburn law. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 127760590 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Evaporation effect on two-dimensional wicking in porous media. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Benner%2C+Eric+M%2E%22">Benner, Eric M.</searchLink><relatesTo>1</relatesTo><i> ebenner@unm.edu</i><br /><searchLink fieldCode="AR" term="%22Petsev%2C+Dimiter+N%2E%22">Petsev, Dimiter N.</searchLink><relatesTo>1</relatesTo><i> dimiter@unm.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Colloid+%26+Interface+Science%22">Journal of Colloid & Interface Science</searchLink>. Mar2018, Vol. 514, p21-29. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Evaporation+%28Chemistry%29%22">Evaporation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Capillary+flow%22">Capillary flow</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Potential+flow%22">Potential flow</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+engineering%22">Chemical engineering</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We analyze the effect of evaporation on expanding capillary flow for losses normal to the plane of a two-dimensional porous medium using the potential flow theory formulation of the Lucas–Washburn method. Evaporation induces a finite steady state liquid flux on capillary flows into fan-shaped domains which is significantly greater than the flux into media of constant cross section. We introduce the evaporation-capillary number, a new dimensionless quantity, which governs the frontal motion when multiplied by the scaled time. This governing product divides the wicking behavior into simple regimes of capillary dominated flow and evaporative steady state, as well as the intermediate regime of evaporation influenced capillary driven motion. We also show flow dimensionality and evaporation reduce the propagation rate of the wet front relative to the Lucas–Washburn law. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jcis.2017.12.004 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 21 Subjects: – SubjectFull: Evaporation (Chemistry) Type: general – SubjectFull: Capillary flow Type: general – SubjectFull: Porous materials Type: general – SubjectFull: Potential flow Type: general – SubjectFull: Chemical engineering Type: general Titles: – TitleFull: Evaporation effect on two-dimensional wicking in porous media. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Benner, Eric M. – PersonEntity: Name: NameFull: Petsev, Dimiter N. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 03 Text: Mar2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 00219797 Numbering: – Type: volume Value: 514 Titles: – TitleFull: Journal of Colloid & Interface Science Type: main |
| ResultId | 1 |
