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Parallel finite element method utilizing the mode splitting and sigma coordinate for shallow water flows

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Abstract

Parallel finite element method for the analysis of quasi-three dimensional shallow water flow is presented. The mode splitting technique and the sigma coordinate (generalized coordinate) are employed to use parallel computers effectively. Parallel implementation of the unstructured grid-based formulation is carried out on the Hitachi parallel-super computer SR2201. The tidal flow of Tokyo Bay is simulated for a numerical example. The speed-up ratio and the efficiency of the parallelization are investigated. The present method is shown to be a useful and powerful tool for the large scale computation of shallow water flows.

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Authors and Affiliations

  1. Department of Civil Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan, , , , , , JP

    K. Kashiyama & Y. Ohba

  2. Coastal Engineering Department, INA Corporation, 1-44-10 Sekiguchi, Bunkyo-ku, Tokyo 112-8668, Japan, , , , , , JP

    T. Takagi

  3. Army HPCRC, University of Minnesota, 1100 Washington Avenue South, Minneapolis, MN 55415, USA, , , , , , US

    M. Behr

  4. Mechanical Engineering and Material Science, Army HPC Research Center, Rice University, MS 321, 6100 Main Street, Houston, TX 77005, USA, , , , , , US

    T. Tezduyar

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  1. K. Kashiyama
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  2. Y. Ohba
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  3. T. Takagi
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  4. M. Behr
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  5. T. Tezduyar
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Kashiyama, K., Ohba, Y., Takagi, T. et al. Parallel finite element method utilizing the mode splitting and sigma coordinate for shallow water flows. Computational Mechanics 23, 144–150 (1999). https://doi.org/10.1007/s004660050394

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  • DOI: https://doi.org/10.1007/s004660050394

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