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dc.contributor.authorWilkinson, Stephen
dc.contributor.authorPourbakhtiar, Alireza
dc.contributor.authorPoulsen, Tjalfe
dc.contributor.authorBridge, Jonathan
dc.date.accessioned2017-01-19T15:29:26Z
dc.date.available2017-01-19T15:29:26Z
dc.date.issued2017-01-19
dc.identifier.citationPourbakhtiar, A., Poulsen, T. G., Wilkinson, S. and Bridge, J. W. (2017), Effect of wind turbulence on gas transport in porous media: experimental method and preliminary results. European Journal of Soil Science, 68: 48–56. doi:10.1111/ejss.12403
dc.identifier.issn1365-2389
dc.identifier.doi10.1111/ejss.12403
dc.identifier.urihttp://hdl.handle.net/2436/620343
dc.description.abstractSummary We demonstrate a novel experimental arrangement for measuring wind turbulence-induced gas transport in dry porous media under controlled conditions. This equipment was applied to assess the effect of wind turbulence on gas transport (quantified as a dispersion coefficient) as a function of distance to the surface of the porous medium exposed to wind. Two different strategies for the measurement of wind-induced gas transport were compared. Experiments were carried out with O2 and CO2 as tracer gases with average vertical wind speeds of 0.02–1.06ms−1. Oxygen breakthrough curves as a function of distance to the wind-exposed surface of the porous medium were analysed numerically with a finite-difference-based model to assess gas transport. We showed that wind turbulence-induced gas transport is an important transport mechanism that can be 20–70 times larger than molecular diffusion-induced transport. Wind conditions and properties of the porous medium had strong controlling effects on this relationship. Importantly, we show that even though wind-induced gas transport is greatest near to the wind-exposed surface, it can have marked effects on the variation in gas concentration at much greater depths.
dc.language.isoen
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1111/ejss.12403/full
dc.subjectatmospheric wind turbulence
dc.subjectgas transport in porous media
dc.subjectwind-induced dispersion
dc.titleEffect of wind turbulence on gas transport in porous media: experimental method and preliminary results
dc.typeJournal article
dc.identifier.journalEuropean Journal of Soil Science
dc.date.accepted2016-11-09
rioxxterms.funderUniversity of Wolverhampton
rioxxterms.identifier.projectUoW190117SW
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/CC BY-NC-ND 4.0
rioxxterms.licenseref.startdate2017-01-19
dc.source.volume68
dc.source.issue1
dc.source.beginpage48
dc.source.endpage56
refterms.dateFCD2018-10-19T09:23:24Z
refterms.versionFCDVoR
refterms.dateFOA2017-01-19T00:00:00Z
html.description.abstractSummary We demonstrate a novel experimental arrangement for measuring wind turbulence-induced gas transport in dry porous media under controlled conditions. This equipment was applied to assess the effect of wind turbulence on gas transport (quantified as a dispersion coefficient) as a function of distance to the surface of the porous medium exposed to wind. Two different strategies for the measurement of wind-induced gas transport were compared. Experiments were carried out with O2 and CO2 as tracer gases with average vertical wind speeds of 0.02–1.06ms−1. Oxygen breakthrough curves as a function of distance to the wind-exposed surface of the porous medium were analysed numerically with a finite-difference-based model to assess gas transport. We showed that wind turbulence-induced gas transport is an important transport mechanism that can be 20–70 times larger than molecular diffusion-induced transport. Wind conditions and properties of the porous medium had strong controlling effects on this relationship. Importantly, we show that even though wind-induced gas transport is greatest near to the wind-exposed surface, it can have marked effects on the variation in gas concentration at much greater depths.


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