Show simple item record

Author
dc.contributor.author
Szijártó, Márk 
Author
dc.contributor.author
Galsa, Attila 
Author
dc.contributor.author
Tóth, Ádám 
Author
dc.contributor.author
Mádl-Szőnyi, Judit 
Availability Date
dc.date.accessioned
2020-09-22T08:53:18Z
Availability Date
dc.date.available
2020-09-22T08:53:18Z
Release
dc.date.issued
2019
Issn
dc.identifier.issn
0022-1694
uri
dc.identifier.uri
http://hdl.handle.net/10831/50658
Abstract
dc.description.abstract
The theoretical examination of the combined effect of water table configuration and heat transfer is relevant to improve understanding of deep groundwater systems, not only in siliciclastic sedimentary basins, but also in fractured rocks or karstified carbonates. Numerical model calculations have been carried out to investigate the interaction of topography-driven forced and buoyancy-driven free thermal convection in a synthetic, two-dimensional model. Effects of numerous model parameters were systematically studied in order to examine their influence on the Darcy flux, the temperature and the hydraulic head field. It was established that higher geothermal gradients and greater model depths facilitate the evolution of time-dependent free thermal convection in agreement with changes of the thermal Rayleigh number and the modified Péclet number. However, increasing water table slope and anisotropy coefficient favor the formation of stationary forced thermal convection. Free thermal convection mainly affects the deeper part of the midline and the discharge zone of the synthetic model. In the examined model basins, the position of the maximum hydraulic head is located within the bottom thermal boundary layer near the recharge zone. This divergent stagnation point underlies a local downwelling zone characterized by underpressure. These simulations draw attention to the importance of understanding the combined effect of forced and free thermal convection in sedimentary basins regarding regional groundwater flow patterns, and temperature distributions.
Language
dc.language
Angol
Contact information
dc.relation.ispartof
urn:issn:0022-1694
Title
dc.title
Numerical investigation of the combined effect of forced and free thermal convection in synthetic groundwater basins
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-09-03T12:31:21Z
Note
dc.description.note
WoS:hiba:000467891900029 2020-01-10 07:41 DOI azonosító nem egyezik
Scope
dc.format.page
364-379
Doi ID
dc.identifier.doi
10.1016/j.jhydrol.2019.03.003
Wos ID
dc.identifier.wos
000467891900029
ID Scopus
dc.identifier.scopus
85063275098
MTMT ID
dc.identifier.mtmt
30573099
abbreviated journal
dc.identifier.jabbrev
J HYDROL
Journal
dc.identifier.jtitle
JOURNAL OF HYDROLOGY
Volume Number
dc.identifier.volume
572
Release Date
dc.description.issuedate
2019
department of Author
dc.contributor.institution
Általános és Alkalmazott Földtani Tanszék
department of Author
dc.contributor.institution
Geofizikai és Űrtudományi Tanszék
department of Author
dc.contributor.institution
TTK hallgatók
department of Author
dc.contributor.institution
Földtudományi Doktori Iskola
Author institution
dc.contributor.department
Geofizikai és Űrtudományi Tanszék
Author institution
dc.contributor.department
Általános és Alkalmazott Földtani Tanszék
Author institution
dc.contributor.department
Általános és Alkalmazott Földtani Tanszék


Files in this item

Numerical investigation of the combined effect of forced and free thermal convection in synthetic groundwater basins
 

This item appears in the following Collection(s)

Show simple item record