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Dynamic subgrid mod...
Dynamic subgrid modeling for time dependent convection-diffusion-reaction equations with fractal solutions
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- Hoffman, Johan (författare)
- KTH,Numerisk analys, NA
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(creator_code:org_t)
- 2001
- 2001
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- A dynamic scale similarity model is proposed. The subgrid model is tested for model problems related to time dependent non-linear convection-diffusion-reaction systems with fractal solutions. The error of an approximate solution with subgrid model on a scale h is typically smaller than that of a solution without subgrid model on the scale h/2. We also consider the problem of a posteriori error estimation for fractal solutions, splitting the total computational error into a numerical error, related to the discretization of the continuous equations, and a modelling error, taking into account the quality of the subgrid model.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Nyckelord
- wavelets; dynamic subgrid modelling; a posteriori error estimation
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)