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Modeling an Aquifer: Numerical Solution to the Groundwater Flow Equation

机译:含水层建模:地下水流方程的数值解

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We present a model of groundwater dynamics under stationary flow and, governed by Darcy's law of water motion through porous media, we apply it to study a 2D aquifer with water table of constant slope comprised of a homogeneous and isotropic media; the more realistic case of an homogeneous anisotropic soil is also considered. Taking into account some geophysical parameters we develop a computational routine, in the Finite Difference Method, which solves the resulting elliptic partial equation, both in a homogeneous isotropic and in a homogeneous anisotropic media. After calibration of the numerical model, this routine is used to begin a study of the Ayamonte-Huelva aquifer in Spain, a modest analysis of the system is given, and we compute the average discharge vector as well as its root mean square as a first predictive approximation of the flux in this system, providing us a signal of the location of best exploitation; long term goal is to develop a complete computational tool for the analysis of groundwater dynamics.
机译:我们提出了一个固定流动下的地下水动力学模型,并受达西通过多孔介质的水运动定律的控制,将其用于研究具有均质和各向同性介质的恒定坡度地下水位的二维含水层;还考虑了更均匀的各向异性土的情况。考虑到一些地球物理参数,我们在有限差分法中开发了一种计算程序,该程序可以求解均质各向同性和均质各向异性介质中的椭圆偏方程。在对数值模型进行校准之后,使用该例程开始对西班牙Ayamonte-Huelva含水层的研究,对该系统进行了适度的分析,然后我们首先计算平均流量矢量及其均方根值该系统中通量的预测近似值,为我们提供了最佳开采位置的信号;长期目标是开发一个完整的计算工具,用于分析地下水动力学。

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