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Finite layer method for flow in layered radial two-zone aquifer systems
Xudong Wang1, Jin Xu, Zhengyin Cai
1Nanjing Hydraulic Research Institute, Nanjing 210029, P. R. China. cewxd@njut.edu.cn
Ground Water
|September 3, 2011
Summary
A new finite layer method (FLM) accurately models transient groundwater flow in complex two-zone aquifer systems. This approach enhances understanding of water movement in layered and anisotropic formations.
Area of Science:
- Hydrogeology
- Computational Mechanics
- Environmental Engineering
Background:
- Layered radial two-zone aquifer systems present complex challenges for transient flow analysis.
- Existing methods may struggle with anisotropy and heterogeneity in these systems.
Purpose of the Study:
- To introduce a novel finite layer method (FLM) for transient flow analysis in radial two-zone aquifer systems.
- To demonstrate the FLM's capability in handling anisotropy, layered heterogeneity, and complex aquifer configurations.
Main Methods:
- Development of a finite layer method (FLM) using piecewise linear correction functions.
- Application of Galerkin's method and flow continuity conditions for formulation.
- Validation through comparison with analytical and finite difference solutions.
Main Results:
- The FLM successfully simulates transient flow in layered radial two-zone aquifers.
- The method accurately models anisotropy and heterogeneity.
- Demonstrated applicability to partially penetrating wells and aquitard-aquifer systems.
Conclusions:
- The finite layer method (FLM) is a valid and applicable tool for transient flow analysis in complex aquifer systems.
- FLM provides a robust approach for simulating groundwater flow in heterogeneous and anisotropic layered formations.
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