Implementation and testing of the CODESA-3D model for density-dependent flow and transport problems in porous media
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Data
2000-07
Autori
Lecca, Giuditta
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Abstract
The report describes the implementation and the test phases of the computer code CODESA-3D (Coupled variable Density and Saturation 3-Dimensional model), whose mathematical and numerical models are described in all details in the ten chapter of the book. CODESA-3D is a three-dimensional finite element simulator for flow and solute transport in variably saturated porous media on unstructured domains. The flow and solute transport processes are coupled through the variable density of the filtrating mixture made of water and dissolved matter (salt, pollutants). The flow module simulates the water movement in the porous medium , taking into account different forcing inputs: infiltration/evaporation, recharge/discharge, withdrawal/injection, etc., while the transport module computes the migration of the salty plume due to advection and diffusion processes.
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Keywords
porous media , coastal aquifers , saltwater intrusion , pollution