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Dynamic subgrid modeling for  scalar convection-diffusion-reaction equations with fractal coefficients
KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA.ORCID iD: 0000-0003-4256-0463
2000 (English)Conference paper (Refereed)
Abstract [en]

In this paper we propose and study a subgrid model for linear convection-diffusion-reaction problems with fractal rough coefficients. The subgrid model is based on extrapolation model of a modeling residual from coarser scales using a computed solution without subgrid model on a finest scale as reference. We present a priori and a posteriori error estimates, and we show in experiments that a solution with subgrid model on a scale h corresponds to a solution without subgrid model on a scale less than h/4

Place, publisher, year, edition, pages
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Computer and Information Science
URN: urn:nbn:se:kth:diva-58728OAI: diva2:473854
Conference Proceedings of Yes 2000: Yosemite Educational Symposium on Multiscale and Multiresolution Mehods
NR 20140805Available from: 2012-01-08 Created: 2012-01-08Bibliographically approved

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Hoffman, Johan
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Numerical Analysis, NA
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