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European Conference on Computational Fluid Dynamics ECCOMAS CFD 2006
 

Summary: European Conference on Computational Fluid Dynamics
ECCOMAS CFD 2006
P. Wesseling, E. O~nate and J. P´eriaux (Eds)
c TU Delft, The Netherlands, 2006
NUMERICAL ZOOM FOR A MULTI-SCALE PROBLEM
J.-B. Apoung Kamga
, Olivier Pironneau
Laboratoire Jacques-Louis Lions, Universit´e P& M Curie (LJLL-UPMC)
175 rue du Chevaleret, 75013 Paris, France
e-mail: apoung@ann.jussieu.fr
LJLL-UPMC and Institut Universitaire de France,
e-mail: Olivier.Pironneau@upmc.fr
Key words: chimera method, DG method, zoom, Darcy's equation, advection diffusion.
Abstract.
While working on a complex simulation problem, namely the safety assessment of a nu-
clear waste repository underground in a clay layer, we observed the necessity of numerical
zooms to speed-up the calculations. The problem has several scales du to the geometry,
the various geological constants and the time scales.
The domain is decomposed into a large one where the simulations may not be precise
and a small one where precision is required; the Chimera method [6] is well adapted to

  

Source: Apoung, Jean-Baptiste.- Département de Mathématiques, Université de Paris-Sud 11

 

Collections: Mathematics