Oberwolfach Reports

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Volume 6, Issue 1, 2009, pp. 681–724
DOI: 10.4171/OWR/2009/12

Published online: 2009-12-23

Mini-Workshop: Numerical Upscaling for Flow Problems: Theory and Applications

Achi Brandt[1], Yalchin Efendiev[2] and Oleg Iliev[3]

(1) Weizmann Institute of Science, Rehovot, Israel
(2) Texas A&M University, College Station, USA
(3) ITWM, Kaiserslautern, Germany

The objective of this workshop was to bring together researchers working in multiscale simulations with emphasis on multigrid methods and multiscale finite element methods, aiming at chieving of better understanding and synergy between these methods. The goal of multiscale finite element methods, as upscaling methods, is to compute coarse scale solutions of the underlying equations as accurately as possible. On the other hand, multigrid methods attempt to solve fine-scale equations rapidly using a hierarchy of coarse spaces. Multigrid methods need “good” coarse scale spaces for their efficiency. The discussions of this workshop partly focused on approximation properties of coarse scale spaces and multigrid convergence. Some other presentations were on upscaling, domain decomposition methods and nonlinear multiscale methods. Some researchers discussed applications of these methods to reservoir simulations, as well as to simulations of filtration, insulating materials, and turbulence.

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Brandt Achi, Efendiev Yalchin, Iliev Oleg: Mini-Workshop: Numerical Upscaling for Flow Problems: Theory and Applications. Oberwolfach Rep. 6 (2009), 681-724. doi: 10.4171/OWR/2009/12