Efficient numerical simulation of ocean hydrodynamics by a splitting procedure

“Efficient numerical simulation of ocean hydrodynamics by a splitting procedure”

Authors: Hans Berntsen, Zygmunt Kowalik, Steinar Sælid and Karstein Sørli,
Affiliation: SINTEF, Institute of Meteorology and Water Management, Poland and NTNU, Department of Engineering Cybernetics
Reference: 1981, Vol 2, No 4, pp. 181-199.

Keywords: Physical oceanography, numerical modeling, fast and slow modes, splitting, efficiency, accuracy, stability

Abstract: A splitting algorithm for fast and slow modes of ocean hydrodynamics is presented. The purpose of the splitting is to reduce the large amount of computational work needed for simulating long real-time periods. The essential point of the splitting is that the external gravity wave terms are extracted from the fully three-dimensional equations of horizontal motion, allowing the reduced equations to be integrated with a larger time step than the original model. The fast external gravity waves are traced by a depth integrated system which is weakly coupled to the reduced three-dimensional momentum equations. The split model shows a radical decrease in computational time and the accuracy is of the same order as in the non-split case.

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PDF (1633 Kb) DOI: 10.4173/mic.1981.4.1

DOI forward links to this article:

[1] Jarle Berntsen (2002), doi:10.1175/1520-0426(2002)019<1403:IPEISC>2.0.CO;2

[2] Øyvind Thiem, Magda Carr, Jarle Berntsen and Peter A. Davies (2011), doi:10.1007/s10236-011-0396-5

[3] Jarle Berntsen and Øyvind Thiem (2007), doi:10.1007/s10236-007-0118-1

[4] Yngve Heggelund, Frode Vikebø, Jarle Berntsen and Gunnar Furnes (2004), doi:10.1016/j.csr.2004.07.005

[5] Jarle Berntsen, Jiuxing Xing and Alan M. Davies (2009), doi:10.1007/s10236-009-0227-0

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[7] S. Holte (1982), doi:10.1016/0278-4343(82)90023-1

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[18] Knut S. Seim, Ilker Fer and Jarle Berntsen (2010), doi:10.1016/j.ocemod.2010.06.002

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[20] Alexander F. Shchepetkin and James C. McWilliams (2009), doi:10.1016/S1570-8659(08)01202-0

[21] Jarle Berntsen (2011), doi:10.1016/j.ocemod.2011.02.006

[22] KJELL STØLE-HANSEN and DAG SLAGSTAD (1991), doi:10.1111/j.1751-8369.1991.tb00632.x

[23] Jarle Berntsen and Gunnar Furnes (2005), doi:10.1016/j.csr.2004.09.025

[24] Arild Sundfjord, Ingrid Ellingsen, Dag Slagstad and Harald Svendsen (2008), doi:10.1016/j.dsr2.2008.05.027

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[26] Eirik Keilegavlen and Jarle Berntsen (2009), doi:10.1016/j.ocemod.2009.02.006

[27] Øyvind Thiem, Jarle Berntsen and Bjørn Gjevik (2006), doi:10.1016/j.csr.2006.02.016

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[29] Birgit Kjoss Lynge, Jarle Berntsen and Bjørn Gjevik (2010), doi:10.1007/s10236-010-0309-z

[30] Jarl Giske, Hein Rune Skjoldal and Dag Slagstad (1998), doi:10.1007/978-3-642-99793-8_2

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BibTeX:
@article{MIC-1981-4-1,
  title={{Efficient numerical simulation of ocean hydrodynamics by a splitting procedure}},
  author={Berntsen, Hans and Kowalik, Zygmunt and Sælid, Steinar and Sørli, Karstein},
  journal={Modeling, Identification and Control},
  volume={2},
  number={4},
  pages={181--199},
  year={1981},
  doi={10.4173/mic.1981.4.1},
  publisher={Norwegian Society of Automatic Control}
};

Article

“Efficient numerical simulation of ocean hydrodynamics by a splitting procedure”