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Use of fractal models to define the scaling behavior of the aquifers’ parameters at the mesoscale
Stochastic Environmental Research and Risk Assessment ( IF 3.9 ) Pub Date : 2020-10-03 , DOI: 10.1007/s00477-020-01881-2
C. Fallico , S. De Bartolo , G. F. A. Brunetti , G. Severino

We present an experimental study aiming at the identification of the hydraulic conductivity in an aquifer which was packed according to four different configurations. The conductivity was estimated by means of slug tests, whereas the other parameters were determined by the grain size analysis. Prior to the fractal we considered the dependence of the conductivity upon the porosity through a power (scaling) law which was found in a very good agreement within the range from the laboratory to the meso-scale. The dependence of the conductivity through the porosity was investigated by identifying the proper fractal model. Results obtained provide valuable indications about the behavior, among the others, of the tortuosity, a parameter playing a crucial role in the dispersion phenomena taking place in the aquifers.



中文翻译:

使用分形模型来定义中尺度上含水层参数的缩放行为

我们目前进行的一项实验研究旨在确定根据四种不同配置填充的含水层中的水力传导率。电导率通过段塞测试进行估算,而其他参数则通过粒度分析确定。在分形之前,我们通过幂(定标)定律考虑了电导率对孔隙率的依赖性,该定律在从实验室到中尺度的范围内都具有很好的一致性。通过确定合适的分形模型研究了电导率对孔隙率的依赖性。获得的结果提供了有关曲折特性的有价值的指示,曲折特性是在含水层中发生的分散现象中起关键作用的参数。

更新日期:2020-10-04
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