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Unformatted text preview: aquifers. An optimized
continuation method for modelling flow in highly heterogeneous domains is introduced and
implemented in a Graphical User Interface (GUI) environment. While the domain geometry
is simple, the main computational challenge is to solve the seawater intrusion problem on
large numerical grids, with both nonlinear and highly variable coefficients. The numerical
results are then analysed in terms of spatial statistics, such as the standard deviation of the
seawater interface elevation versus distance from the seashore (σZSALT(x)).
2 PROBLEM FORMULATION AND NUMERICAL MODEL Seawater intrusion is modeled in the framework of the sharp interface approach, while still
retaining the essential feature of aquifer variability in the 2D plane. Our approach assumes
that seawater and freshwater are immiscible fluids, and relies on pressure equilibrium
relations (Ghyben-Herzberg) to close the resulting system of equations. In this 2D Modélisation stochastique de l'intrusion saline en 2D plan 72 framework, all variables and parameters are spatially distributed in (x,y).
Applying the hydrostatic assumpt...
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This document was uploaded on 01/19/2014.
- Winter '14
- The Land, In French