Semi-analytical solution of a partially penetrating well in a three-dimensional anisotropic aquifer

被引：0
|
作者：
Wu S.-C. [1 ]
Lin H.-T. [1 ]
Ke K.-Y. [2 ]
Chuang C.-T. [3 ]
机构：
[1] Formosa Plastics Corporation Soil, GW Management Group
[2] National Taiwan University, Department of Civil Engineering
[3] National Taiwan University, Center of Weather Climate and Disaster Research
来源：
Journal of Taiwan Agricultural Engineering | 2020年 / 66卷 / 01期
关键词：
Gauss-legendre quadrature; Hantush well function; Partially penetrating well;
D O I：
10.29974/JTAE.202003_66(1).0005
中图分类号：
学科分类号：
摘要：
Investigation of hydrological property of the aquifer is a key work in groundwater modeling. Previous research focused on 2D or 3D fully penetrated wells in anisotropic confined aquifers to derive the analytical of horizontal hydraulic conductivity, i.e. Kxx and Kyy. This paper demonstrates a new semi-analytical solution for the pumping-drawdown response of the partially penetrating well, situated in the homogenous and anisotropic 3D confined aquifer via Gauss-Legendre Quadrature and Hantush well function (Generalized Incomplete Gamma Function) in order to increase the precision of the solution. The results show more Gauss points lead to higher precision. However, considering the modeling efficiency, 32 Gauss points is applied to assess what range is best for Hantush well function and associated analytical solution with different u and Xn/L. Finally, the pumping test of screen opening at different depth for the homogenous, anisotropic confined aquifer is investigated. Results show the drawdown is highest with opening in the middle section. © 2020, Taiwan Agricultural Engineers Society. All rights reserved.
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页码：44 / 60
页数：16
相关论文
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