Adaptive Numerical Simulation of the Remediation of Soil Contamination by In-Situ Gas Venting
نویسندگان
چکیده
This paper describes the numerical simulation of the extraction of volatile pollutants from unsaturated ground by in-situ gas venting. The problem is described by a twodimensional, time-dependent, multiphase porous media ow model. Sorption of the pollutants to the soil surface is included. The simulation software is based upon the SPRINT2D adaptive unstructured mesh PDE software, with a new Galerkin Finite Element module incorporating an upstream stabilisation technique. Automatic spatial mesh adaptivity is shown to provide signi cant e ciency and accuracy bene ts. The prototype venting simulator SPVENT is described, and example results and future developments are presented.
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