globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-5211-2018
论文题名:
Numerical modeling of flow and transport in the Bari industrial area by means of rough walled parallel plate and random walk models
作者: Cherubini C.; Pastore N.; Rapti D.; Giasi C.I.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:10
起始页码: 5211
结束页码: 5225
语种: 英语
Scopus关键词: Aquifers ; Flow of fluids ; Fracture ; Groundwater resources ; Hydrogeology ; Lime ; Random processes ; Solute transport ; Distribution of solute ; Equivalent aperture ; Geostatistical analysis ; Groundwater contamination ; Limestone aquifers ; Random walk models ; Steady-state distributions ; Transport dynamics ; Groundwater pollution
英文摘要: Modeling fluid flow and solute transport dynamics in fractured karst aquifers is one of the most challenging tasks in hydrogeology.

The present study investigates the hotspots of groundwater contamination in the industrial area of Modugno (Bari - southern Italy), where the limestone aquifer has a fractured and karstic nature.

A rough walled parallel plate model coupled with a geostatistical analysis to infer the values of the equivalent aperture has been implemented and calibrated on the basis of piezometric data. Using the random walk theory, the steady-state distribution of hypothetical contamination with the source at the hotspot has been carried out, reproducing a pollution scenario which is compatible with the observed one. From an analysis of the flow and transport pattern it is possible to infer that the anticline affecting the Calcare di Bari formation in direction ENE-WSW influences the direction of flow as well as the propagation of the contaminant.

The results also show that the presence of nonlinear flow influences advection, in that it leads to a delay in solute transport with respect to the linear flow assumption. This is due to the non-constant distribution of solutes according to different pathways for fractured media which is related to the flow rate. © Author(s) 2018.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163175
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作者单位: Cherubini, C., Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, Ferrara, 44122, Italy, School of Civil Engineering, University of Queensland St Lucia, Brisbane, 4072, Australia; Pastore, N., DICATECh, Department of Civil Environmental Building Engineering, Chemistry Politecnico di Bari, Bari, Italy; Rapti, D., New Energies and Environment Company (NEA), Via Saragat 1, Ferrara, 44122, Italy; Giasi, C.I., DICATECh, Department of Civil Environmental Building Engineering, Chemistry Politecnico di Bari, Bari, Italy

Recommended Citation:
Cherubini C.,Pastore N.,Rapti D.,et al. Numerical modeling of flow and transport in the Bari industrial area by means of rough walled parallel plate and random walk models[J]. Hydrology and Earth System Sciences,2018-01-01,22(10)
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