| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2019 |
| Язык | английский |
|
Обносов Юрий Викторович, автор
|
|
Kacimov Anvar Rashidovich, автор
Or Dani , автор
|
| Библиографическое описание на языке оригинала |
A.R. Kacimov, Yu.V.Obnosov, D. Or. Evaporation Induced Capillary Siphoning Through Hydraulically Connected Porous Domains: the Vedernokov-Bouwer Model Revisited. Transport in Porous Media (Springer), 2019, DOI: 10.1007/s11242-019-01285-z, accepted, TIPM-D-18-00549R1 (IF=2.205, Q2) |
| Аннотация |
Evaporation-driven wicking of soil water through porous domains with contrasting hydraulic properties is studied analytically by conformal mappings and compared to numerical solutions.
Initially, the connected rectangular domains are fully saturated. The first rectangle, Gp, is comprised of a coarse-textured porous medium with large permeability and low capillary
forces. Evaporation-induced capillary flow pulls water horizontally across the domains to the surface of fine-textured rectangular domain, Gz, through an interfacial hydraulic exchange
region that shrinks with time. The flow field in Gz is 2-D and is analytically expressed by the Vedernikov–Bouwer model that assumes a constant hydraulic conductivity for pressure
heads higher than the air-entry value. The rate of 1-D drop of the phreatic surface in Gp is proportional to the evaporation rate (decreasing with time) from the Gz surface. The complex
potential domain Gw “shrinks” with time, and at any time instance, it is conformally mapped onto Gz via two auxiliary planes using the Schwarz–Christoffel and Mobius transformations.
The resulting Cauchy problem for an integro-differential equation with respect to an affix of the conformal mapping is solved using numerical algebra routines. A similar capillary
coupled flow problem was numerically simulated using HYDRUS2D considering 2-D flow in both Gp and Gz. New insights into process dynamics are gained from a solution of an auxiliary optimization for a vertical imbibition in a column brought in contact with a water
table where particle size (linking capillarity and permeability) is used as a control variable and counter-gravity front propagation dynamics as criteria. |
| Ключевые слова |
Counter-gravity imbibition, Stages of evaporation, 2-D potential flow,
Complex potential, HYDRUS simulations |
| Название журнала |
Transport in Porous Media
|
| Ссылка для РПД |
http://dspace.kpfu.ru/xmlui/bitstream/handle/net/150726/F_TiPM_2019.pdf?sequence=1&isAllowed=y
|
| URL |
http://10.1007/s11242-019-01285-z |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=200192 |
| Файлы ресурса | |
|
|
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Обносов Юрий Викторович |
ru_RU |
| dc.contributor.author |
Kacimov Anvar Rashidovich |
ru_RU |
| dc.contributor.author |
Or Dani |
ru_RU |
| dc.date.accessioned |
2019-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2019-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2019 |
ru_RU |
| dc.identifier.citation |
A.R. Kacimov, Yu.V.Obnosov, D. Or. Evaporation Induced Capillary Siphoning Through Hydraulically Connected Porous Domains: the Vedernokov-Bouwer Model Revisited. Transport in Porous Media (Springer), 2019, DOI: 10.1007/s11242-019-01285-z, accepted, TIPM-D-18-00549R1 (IF=2.205, Q2) |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=200192 |
ru_RU |
| dc.description.abstract |
Transport in Porous Media |
ru_RU |
| dc.description.abstract |
Evaporation-driven wicking of soil water through porous domains with contrasting hydraulic properties is studied analytically by conformal mappings and compared to numerical solutions.
Initially, the connected rectangular domains are fully saturated. The first rectangle, Gp, is comprised of a coarse-textured porous medium with large permeability and low capillary
forces. Evaporation-induced capillary flow pulls water horizontally across the domains to the surface of fine-textured rectangular domain, Gz, through an interfacial hydraulic exchange
region that shrinks with time. The flow field in Gz is 2-D and is analytically expressed by the Vedernikov–Bouwer model that assumes a constant hydraulic conductivity for pressure
heads higher than the air-entry value. The rate of 1-D drop of the phreatic surface in Gp is proportional to the evaporation rate (decreasing with time) from the Gz surface. The complex
potential domain Gw “shrinks” with time, and at any time instance, it is conformally mapped onto Gz via two auxiliary planes using the Schwarz–Christoffel and Mobius transformations.
The resulting Cauchy problem for an integro-differential equation with respect to an affix of the conformal mapping is solved using numerical algebra routines. A similar capillary
coupled flow problem was numerically simulated using HYDRUS2D considering 2-D flow in both Gp and Gz. New insights into process dynamics are gained from a solution of an auxiliary optimization for a vertical imbibition in a column brought in contact with a water
table where particle size (linking capillarity and permeability) is used as a control variable and counter-gravity front propagation dynamics as criteria. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
Counter-gravity imbibition |
ru_RU |
| dc.subject |
Stages of evaporation |
ru_RU |
| dc.subject |
2-D potential flow |
ru_RU |
| dc.subject |
Complex potential |
ru_RU |
| dc.subject |
HYDRUS simulations |
ru_RU |
| dc.title |
Evaporation Induced Capillary Siphoning Through Hydraulically Connected Porous Domains: the Vedernokov-Bouwer Model Revisited |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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