Inverse modeling in the time domain for solving diffusion in a heterogeneous rock matrix

Details Inverse modeling in the time domain for solving diffusion in a heterogeneous rock matrix Inverse modeling in the time domain for solving diffusion in a heterogeneous rock matrix

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30c..47d&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 3, pp. 47-1, CiteID 1147, DOI 10.1029/2002GL016428

Physics

Geophysics

4

Hydrology: Groundwater Transport, Mathematical Geophysics: Inverse Theory, Mathematical Geophysics: Numerical Solutions

Scientific paper

A Lagrangian method has been developed to solve heterogeneous diffusion. The time domain on which the method rests allows for the coupling with a Gauss-Newton inversion in which the sensitivity to parameters is derived analytically. This tool has proved very rapid and efficient, even for large computation grids as those extracted from autoradiographs of rock samples. It offers a more comprehensive view of transport by diffusion for many applications, one of them being for instance, the safety of underground repository sites.

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