波兰Nowy Sącz附近Świniarsko进水口附近地下水循环有限元模型

IF 0.9 Q3 GEOLOGY
Geologos Pub Date : 2019-12-01 DOI:10.2478/logos-2019-0028
Robert Zdechlik, Agnieszka Kałuża
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引用次数: 2

摘要

现代水文地质研究采用数值模拟方法,通常基于有限差分法(FDM)或有限元法(FEM)。本文讨论了在Nowy Sącz附近的Świniarsko进水口附近应用较少使用的有限元法模拟地下水循环的一个例子。研究区以河流和流域为界,区内发育两个连通良好的含水层(第四纪砂质砾岩和古近纪裂隙复理石岩)。考虑到网格的性质和密度的假设,使用三角形生成器将该区域离散化。河流、水井、灌溉渠和降水入渗被投影到边界条件上。利用水平衡和带流道线的地下水位等高线图,在标定模型的基础上对含水层的地下水循环条件进行了评价。应用基于有限元法的程序,利用离散网格的光滑局部致密化,可以精确映射影响水循环的物体的位置。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The FEM model of groundwater circulation in the vicinity of the Świniarsko intake, near Nowy Sącz (Poland)
Abstract Modern hydrogeological research uses numerical modelling, which is most often based on the finite difference method (FDM) or finite element method (FEM). The present paper discusses an example of application of the less frequently used FEM for simulating groundwater circulation in the vicinity of the intake at Świniarsko near Nowy Sącz. The research area is bordered by rivers and watersheds, and within it, two well-connected aquifers occur (Quaternary gravelly-sandy sediments and Paleogene cracked flysch rocks). The area was discretized using a Triangle generator, taking into account assumptions about the nature and density of the mesh. Rivers, wells, an irrigation ditch and infiltration of precipitation were projected onto boundary conditions. Conditions of groundwater circulation in the aquifer have been assessed based on a calibrated model, using water balance and a groundwater level contour map with flow path lines. Application of the program based on FEM, using smooth local densification of the discretization mesh, has allowed for precise mapping of the location of objects that significantly shape water circulation.
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来源期刊
Geologos
Geologos GEOLOGY-
CiteScore
1.70
自引率
0.00%
发文量
7
审稿时长
12 weeks
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