Parallel finite element methods for large-scale computation of storm surges and tidal flows
Parallel finite element methods for large-scale computation of storm surges and tidal flows
复制标题
用于大规模风暴潮和潮汐计算的并行有限元方法
DOI：
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发表时间：
1997
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影响因子：
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通讯作者：
T. Tezduyar
中科院分区：
文献类型：
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作者：
K. Kashiyama;Katsuya Saitoh;Marek Behr;T. Tezduyar
本文讨论了大规模风暴潮和潮流计算的大规模并行有限元方法。有限元计算，使用非结构化网格，是基于一个三步显式配方和隐式时空配方。并行实现这些非结构化的基于网格的配方进行了富士通高度并行计算机AP 1000和思考机CM-5。模拟的风暴潮伴随着1959年伊势湾台风和东京湾的潮流作为数值例子。并行化对这种类型的模拟的影响也进行了研究。这些方法是分析风暴潮和潮流的有效工具。
Massively parallel finite element methods for large-scale computation of storm surges and tidal flows are discussed here. The finite element computations, carried out using unstructured grids, are based on a three-step explicit formulation and on an implicit space-time formulation. Parallel implementations of these unstructured grid-based formulations are carried out on the Fujitsu Highly Parallel Computer AP1000 and on the Thinking Machines CM-5. Simulations of the storm surge accompanying the Ise-Bay typhoon in 1959 and of the tidal flow in Tokyo Bay serve as numerical examples. The impact of parallelization on this type of simulation is also investigated. The present methods are shown to be useful and powerful tools for the analysis of storm surges and tidal flows.