Simulation of solute transport behaviors in saturated karst aquifer system

Abstract The karst development makes aquifer have strong anisotropy and heterogeneity. In order to reveal the characteristics of solute transport in the karst fissure–conduit aquifer system, this study presents a physical model of fissure–conduit in laboratory experiments to carry out the solute tra...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Xuewei Chu, Hanghang Ding, Xuemei Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3458474ddeaf4de8bdd31c279dc5ada9
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3458474ddeaf4de8bdd31c279dc5ada9
record_format	dspace
spelling	oai:doaj.org-article:3458474ddeaf4de8bdd31c279dc5ada92021-12-02T17:06:33ZSimulation of solute transport behaviors in saturated karst aquifer system10.1038/s41598-021-94950-72045-2322https://doaj.org/article/3458474ddeaf4de8bdd31c279dc5ada92021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94950-7https://doaj.org/toc/2045-2322Abstract The karst development makes aquifer have strong anisotropy and heterogeneity. In order to reveal the characteristics of solute transport in the karst fissure–conduit aquifer system, this study presents a physical model of fissure–conduit in laboratory experiments to carry out the solute transport simulation. In this paper, the tracer tests of fissure–conduit combination, fissure, and conduit solute transport process in saturated flow are designed. We found that different aquifer structures and tracer injection points have an influence on the shape of the breakthrough curve. Besides, the two-dimensional dispersion model of tracer injection of the instantaneous point was used to calculate the dispersion parameters of each group of experiments. Then, the dynamic responses of the linear distance (x) between the injection point and the receiving point, initial time (t 0), peak time (t m), peak concentration (c m), average tracer transport velocity (V), and porosity (p) of aqueous media to the longitudinal dispersion coefficient are discussed. In addition, according to the measured data, Gaussian multi-peak fitting can be used to reflect the overall shape and change trend of the multi-peak BTC. These results demonstrate the solute transport behaviors in the saturated karst aquifer system, which have important reference significance for solving the engineering environmental problems in the karst area.Xuewei ChuHanghang DingXuemei ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xuewei Chu Hanghang Ding Xuemei Zhang Simulation of solute transport behaviors in saturated karst aquifer system
description	Abstract The karst development makes aquifer have strong anisotropy and heterogeneity. In order to reveal the characteristics of solute transport in the karst fissure–conduit aquifer system, this study presents a physical model of fissure–conduit in laboratory experiments to carry out the solute transport simulation. In this paper, the tracer tests of fissure–conduit combination, fissure, and conduit solute transport process in saturated flow are designed. We found that different aquifer structures and tracer injection points have an influence on the shape of the breakthrough curve. Besides, the two-dimensional dispersion model of tracer injection of the instantaneous point was used to calculate the dispersion parameters of each group of experiments. Then, the dynamic responses of the linear distance (x) between the injection point and the receiving point, initial time (t 0), peak time (t m), peak concentration (c m), average tracer transport velocity (V), and porosity (p) of aqueous media to the longitudinal dispersion coefficient are discussed. In addition, according to the measured data, Gaussian multi-peak fitting can be used to reflect the overall shape and change trend of the multi-peak BTC. These results demonstrate the solute transport behaviors in the saturated karst aquifer system, which have important reference significance for solving the engineering environmental problems in the karst area.
format	article
author	Xuewei Chu Hanghang Ding Xuemei Zhang
author_facet	Xuewei Chu Hanghang Ding Xuemei Zhang
author_sort	Xuewei Chu
title	Simulation of solute transport behaviors in saturated karst aquifer system
title_short	Simulation of solute transport behaviors in saturated karst aquifer system
title_full	Simulation of solute transport behaviors in saturated karst aquifer system
title_fullStr	Simulation of solute transport behaviors in saturated karst aquifer system
title_full_unstemmed	Simulation of solute transport behaviors in saturated karst aquifer system
title_sort	simulation of solute transport behaviors in saturated karst aquifer system
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3458474ddeaf4de8bdd31c279dc5ada9
work_keys_str_mv	AT xueweichu simulationofsolutetransportbehaviorsinsaturatedkarstaquifersystem AT hanghangding simulationofsolutetransportbehaviorsinsaturatedkarstaquifersystem AT xuemeizhang simulationofsolutetransportbehaviorsinsaturatedkarstaquifersystem
_version_	1718381546851794944

Simulation of solute transport behaviors in saturated karst aquifer system

Ejemplares similares