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On Duality-Based A ...
On Duality-Based A Posteriori Error Estimation in Various Norms and Linear Functionals for Large Eddy Simulation
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- Hoffman, Johan (författare)
- Courant Institute, New York University
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(creator_code:org_t)
- 2004
- 2004
- Engelska.
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Ingår i: SIAM Journal on Scientific Computing. - 1064-8275 .- 1095-7197. ; 26:1, s. 178-195
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We derive a posteriori error estimates for the filtered velocity field in a large eddy simulation in various norms and linear functionals. The a posteriori error estimates take the form of an integral in space-time of a discretization residual and a modeling residual times a dual weight. The discretization residual is directly computable, and the modeling residual is estimated by a scale similarity model. We approximate the dual weight by solving an associated linearized dual problem numerically. Computational examples from transition to turbulence in Couette flow are presented.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- adaptive finite element methods
- duality
- a posteriori error estimates
- turbulent viscous incompressible flow
- large eddy simulation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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