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Time Compact Differ...
Time Compact Difference Methods for Wave Propagation in Discontinuous Media
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- Gustafsson, Bertil (författare)
- Uppsala universitet,Avdelningen för teknisk databehandling,Numerisk analys,Waves and Fluids
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- Wahlund, Per (författare)
- Uppsala universitet,Avdelningen för teknisk databehandling,Numerisk analys,Waves and Fluids
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(creator_code:org_t)
- 2003
- Engelska.
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Serie: Technical report / Department of Information Technology, Uppsala University, 1404-3203 ; 2003-023
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Abstract
Ämnesord
Stäng
- In an earlier paper by Gustafsson and Mossberg, a fourth order one-step method was constructed for the solution of wave propagation problems. The method is based on the first order system form of the PDE, and uses a staggered grid both in space and time. The method was also applied with good results to a problem with discontinuous coefficients without using any special procedure across the discontinuity. In this paper we will analyze a model problem from acoustics, and demonstrate the theoretical foundation for this behavior. Furthermore, we shall present more detailed numerical experiments which confirm the theoretical results.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Publikations- och innehållstyp
- vet (ämneskategori)
- rap (ämneskategori)