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Article: Macroscopic equations for vapor transport in a multi-layered unsaturated zone
Title | Macroscopic equations for vapor transport in a multi-layered unsaturated zone |
---|---|
Authors | |
Keywords | Dispersion Homogenization theory Layered porous media Vapor transport |
Issue Date | 1999 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/advwatres |
Citation | Advances In Water Resources, 1999, v. 22 n. 6, p. 611-622 How to Cite? |
Abstract | Using the method of homogenization, we present a systematic derivation of the macroscopic equations for air flow and chemical vapor transport in an unsaturated zone with a periodic structure of heterogeneity. The effective specific discharge and hydrodynamic dispersion coefficient are expressible in terms of some cell functions, whose analytical solutions are sought for the simple case of alternate stacking of two strictly plane layers of different properties. For this kind of bi-layered composite, the effects of convection velocity and layer property contrasts on the longitudinal and transverse components of the hydrodynamic dispersion coefficient are investigated. |
Persistent Identifier | http://hdl.handle.net/10722/75723 |
ISSN | 2023 Impact Factor: 4.0 2023 SCImago Journal Rankings: 1.194 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ng, CO | en_HK |
dc.date.accessioned | 2010-09-06T07:13:56Z | - |
dc.date.available | 2010-09-06T07:13:56Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | Advances In Water Resources, 1999, v. 22 n. 6, p. 611-622 | en_HK |
dc.identifier.issn | 0309-1708 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/75723 | - |
dc.description.abstract | Using the method of homogenization, we present a systematic derivation of the macroscopic equations for air flow and chemical vapor transport in an unsaturated zone with a periodic structure of heterogeneity. The effective specific discharge and hydrodynamic dispersion coefficient are expressible in terms of some cell functions, whose analytical solutions are sought for the simple case of alternate stacking of two strictly plane layers of different properties. For this kind of bi-layered composite, the effects of convection velocity and layer property contrasts on the longitudinal and transverse components of the hydrodynamic dispersion coefficient are investigated. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/advwatres | en_HK |
dc.relation.ispartof | Advances in Water Resources | en_HK |
dc.subject | Dispersion | en_HK |
dc.subject | Homogenization theory | en_HK |
dc.subject | Layered porous media | en_HK |
dc.subject | Vapor transport | en_HK |
dc.title | Macroscopic equations for vapor transport in a multi-layered unsaturated zone | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0309-1708&volume=22&issue=6&spage=611&epage=622&date=1999&atitle=Macroscopic+equations+for+vapor+transport+in+a+multi-layered+unsaturated+zone | en_HK |
dc.identifier.email | Ng, CO:cong@hku.hk | en_HK |
dc.identifier.authority | Ng, CO=rp00224 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/S0309-1708(98)00034-7 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0033599344 | en_HK |
dc.identifier.hkuros | 41053 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033599344&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 22 | en_HK |
dc.identifier.issue | 6 | en_HK |
dc.identifier.spage | 611 | en_HK |
dc.identifier.epage | 622 | en_HK |
dc.identifier.isi | WOS:000079211500006 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Ng, CO=7401705594 | en_HK |
dc.identifier.issnl | 0309-1708 | - |