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On the Suboptimal A...
On the Suboptimal Accuracy of Summation-by-parts Schemes with Non-conforming Block Interfaces
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- Lundquist, Tomas (författare)
- Linköpings universitet,Beräkningsmatematik,Tekniska fakulteten
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- Nordström, Jan (författare)
- Linköpings universitet,Beräkningsmatematik,Tekniska fakulteten
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(creator_code:org_t)
- Linköping University Electronic Press, 2016
- Engelska 12 s.
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Serie: LiTH-MAT-R, 0348-2960 ; 2015:16
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Abstract
Ämnesord
Stäng
- We derive a bound on the formal accuracy of interpolation schemes for energy stable summation-by-parts discretizations on non-conforming multiblock grids. This result explains the suboptimal accuracy for such schemes reported in previous works. Numerical simulations confirm a corresponding reduced convergence rate in both maximum and L2 norms.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Summation-by-parts
- High order finite difference methods
- Multi-block discretizations
- Interpolation operators.
Publikations- och innehållstyp
- vet (ämneskategori)
- rap (ämneskategori)