Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR029969 |
Hydrogeological Models of Water Flow and Pollutant Transport in Karstic and Fractured Reservoirs | |
Costantino Masciopinto; Giuseppe Passarella; Maria C. Caputo; Rita Masciale; Lorenzo De Carlo | |
2021-07-17 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | In a literature review of the recent advancements in mathematical hydrologic models applied in fractured karstic formations, we highlight the necessary improvements in the fluid dynamic equations that are commonly applied to the flow in a discrete fracture network (DFN) via channel network models. Fluid flow and pollutant transport modeling in karst aquifers should consider the simultaneous occurrence of laminar, nonlaminar, and turbulent fluxes in the fractures rather than the laminar flow by the cubic law that has been widely applied in the scientific literature. Some simulations show overestimations up to 75% of the groundwater velocity when non-laminar flows are neglected. Moreover, further model development is needed to address the issues of tortuosity of preferential saturated fluid flow in fractures suggesting adjustments of the size of the mean aperture in DFN models. During the past decade, DFN mathematical models have been significantly developed aimed at relating the three-dimensional structure of interconnected fractures within rocky systems to the specific fracture properties measurable on the rock outcrops with the use of reliefs, tracer/pumping tests, and geotechnical field surveys. The capabilities and limitations of previous reported hydrological models together with specific research advancements and findings in modeling equations are described herein. New software is needed for creating three-dimensional contour maps in fractured aquifers corresponding to the outputs of particle tracking simulations. Existing software based on the equivalent continuum or multiple-interacting continua cannot delineate the spread of pollutant migrations affected by the tortuous preferential flow pathways that occur in DFNs. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333776 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Costantino Masciopinto,Giuseppe Passarella,Maria C. Caputo,et al. Hydrogeological Models of Water Flow and Pollutant Transport in Karstic and Fractured Reservoirs[J]. Water Resources Research,2021. |
APA | Costantino Masciopinto,Giuseppe Passarella,Maria C. Caputo,Rita Masciale,&Lorenzo De Carlo.(2021).Hydrogeological Models of Water Flow and Pollutant Transport in Karstic and Fractured Reservoirs.Water Resources Research. |
MLA | Costantino Masciopinto,et al."Hydrogeological Models of Water Flow and Pollutant Transport in Karstic and Fractured Reservoirs".Water Resources Research (2021). |
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