干旱区生态环境知识资源中心(Arid): Analytic solutions for quasi-3D seepage in a shallow unconfined aquifer as a plane composed of a transpiration-inducing park and its hydraulically commingled exterior

Arid

DOI	10.1016/j.jhydrol.2023.130302
	Analytic solutions for quasi-3D seepage in a shallow unconfined aquifer as a plane composed of a transpiration-inducing park and its hydraulically commingled exterior
	Kacimov, A. R.
通讯作者	Kacimov, AR
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2023
卷号	626
英文摘要	Strack's (1984, 2017) analysis of infiltration from a pond into a shallow aquifer, with a generated groundwater mound, is modified for steady phreatic groundwater flows in perched aquifers, typical for arid/hyperarid environments, with a zone of intensive transpiration and induced groundwater trough. The interior of an urban phreatophytic park is an n-polygon (in an aerial view), which degenerates into a circle at n ->infinity. Transpiration acts as an areal groundwater sink. The water table drawdown is hydrologically symmetric with Strack's drawup. In the exterior of the park, the ground surface is phyto-sterile (e.g. a desert in Arabia or a paved megapolis) and evapotranspiration from the water table there is ignored. The travel (residence) time of advected marked particles along the flowpaths (streamlines) towards the park and under it are analytically evaluated. In terms of the Dupuit-Forchheimer model of a vertically averaged hydraulic head, the Strack potential obeys the Laplace and Poisson equations in polygon's exterior and interior (correspondingly), with a hydraulic commingling along the park boundary. The tracer particles start their topologically converging journey from a remote circular zone of contamination (e.g. sewage from urban septic tanks recharging the water table). Porosity, hydraulic conductivity of the aquifer, evapotranspiration rate and a piezometric head in a remote observational well are given. For a circular park flow is 1-D radial. In the park exterior, the Schwarz-Christoffel formula maps conformally the physical domain (an infinite trigon) onto a half-strip in the complex potential plane. Strack's potential is expressed via hypergeometric functions, whose parameters depend on n. The flow net is reconstructed with the help of the stream function. For a triangular park interior, there is no stream function and the Saint-Venant solution to the Poisson equation is engaged to find the water table, hydraulic gradients, and discharge streamlines. The total dewatered volume and groundwater storage under the water table and gross travel time are evaluated for circular parks. Implications for ecohydrology of parks and desert oases in the Gulf countries and intuitive isoperimetric problems are discussed.
英文关键词	The Dupuit-Forchheimer approximation Phreatic surface Shallow aquifer Converging groundwater flow Analytical solutions to Dirichlet's boundary- value problems for concatenated Laplace's- Poisson's equations Conformal mappings Travel time along flow paths and discharge streamlines
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001109503600001
WOS关键词	RESIDENCE TIME DISTRIBUTIONS ; PHREATIC-SURFACE FLOW ; TRAVEL-TIME ; GROUNDWATER AGE ; WATER ; WELL ; MODEL ; STREAMLINES ; SYSTEM ; ZONES
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397428
推荐引用方式 GB/T 7714	Kacimov, A. R.. Analytic solutions for quasi-3D seepage in a shallow unconfined aquifer as a plane composed of a transpiration-inducing park and its hydraulically commingled exterior[J],2023,626.
APA	Kacimov, A. R..(2023).Analytic solutions for quasi-3D seepage in a shallow unconfined aquifer as a plane composed of a transpiration-inducing park and its hydraulically commingled exterior.JOURNAL OF HYDROLOGY,626.
MLA	Kacimov, A. R.."Analytic solutions for quasi-3D seepage in a shallow unconfined aquifer as a plane composed of a transpiration-inducing park and its hydraulically commingled exterior".JOURNAL OF HYDROLOGY 626(2023).

条目包含的文件
条目无相关文件。

个性服务

谷歌学术

百度学术

必应学术

相关权益政策

收藏/分享