1. Zones of influence of active wells in an aquifer
In this first paragraph, we present the simplified two-dimensional equations of aquifer hydrodynamics and well flow. Water flow in the aquifer is assumed to be the same over the entire water head h (no z-variation in parameters).
1.1 Aquifer flow in porous media
In cylindrical coordinates (r, θ, z), the equation for underground hydrodynamics at the aquifer well at rest in a porous medium assumed to be homogeneous and isotropic is expressed as a function of the single variable r and time t by the partial differential equation :
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Zones of influence of active wells in an aquifer
Evolution of the hydraulic drainage zone in the moving aquifer
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