Search: onr:"swepub:oai:DiVA.org:kth-14426" >
Subgrid modeling fo...
Subgrid modeling for convection-diffusion-reaction in one space dimension using a Haar Multiresolution analysis
-
- Hoffman, Johan (author)
- Mathematics, Chalmers,Chalmers tekniska högskola,Chalmers University of Technology,Courant Institute of Mathematical Sciences
-
- Johnson, Claes (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences,Department of Computational Mathematics, Chalmers University
-
- Bertoluzza, S. (author)
- Istituto Di Matematica Applicata E Tecnologie Informatiche, Pavia
-
(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- English.
-
In: Computer Methods in Applied Mechanics and Engineering. - : Elsevier BV. - 0045-7825 .- 1879-2138. ; 194:1, s. 19-44
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://gup.ub.gu.se...
-
show less...
Abstract
Subject headings
Close
- In this paper we propose and study a subgrid model for linear convection-diffusion-reaction equations with fractal rough coefficients. The subgrid model is based on scale extrapolation of a modeling residual from coarser scales using a computed solution on a finest scale as reference. We show in experiments that a solution with subgrid model on a scale h in most cases corresponds to a solution without subgrid model on a scale less than h/4. We also present error estimates for the modeling error in terms of modeling residuals.
Subject headings
- NATURVETENSKAP -- Matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics (hsv//eng)
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Keyword
- convection-diffusion-reaction
- dynamic subgrid modeling
- Haar Multiresolution analysis
- modeling errors
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database