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Unformatted text preview: the two versions. The use of finiteelement and integrated-finite-difference hybrid method allows great numerical flexibility in the
governing equations discretization. The author stress that SUTRA will provide clear, accurate
answers only to well-posed, well-defined, and well-discretized simulation problems this would
suggest that the used numerical scheme is greatly sensitive to discretization parameters. The
Peclet number criterion is Pe ≤ 4. In the case of a not-well posed problem the codes is presented
as a “hypothesis testing” tool. The code includes the iterative matrix solver SLAP Common
Mathematical Library (Vandevender and Haskell, 1982). The SLAP package contains a CG
solver (Conjugate Gradients), a GMRES solver (Generalized Minimum RESidual), and an
ORTHOMIN solver. The CG is employed for symmetric matrix systems obtained generally in
the GW flow equations. The GMRES and the ORTHOMIN are invoked to solve non-symmetric
systems encountered in advective transport equations or numerically analogous problems, e.g.
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This document was uploaded on 01/19/2014.
- Winter '14
- The Land, In French