Development of Explicit Eulerian Finite Difference Solver for Large-Scale Fluid-Structure Interaction Systems

• Item type: Symposium(1)
• 公開日: 2012-01-17
• タイトル: Development of Explicit Eulerian Finite Difference Solver for Large-Scale Fluid-Structure Interaction Systems
• タイトル / 言語: en
• タイトル: Development of Explicit Eulerian Finite Difference Solver for Large-Scale Fluid-Structure Interaction Systems
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: アプリケーション
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_5794
• 資源タイプ: conference paper
• 著者所属: The University of Tokyo
• 著者所属: Fujitsu Nagano Systems Engineering Ltd.
• 著者所属: Riken
• 著者所属: Riken
• 著者所属: The University of Tokyo
• 著者所属: The University of Tokyo／Riken
• 著者所属: The University of Tokyo
• 著者所属: Riken
• 著者所属(英): en
• 著者所属(英): The University of Tokyo
• 著者所属(英): en
• 著者所属(英): Fujitsu Nagano Systems Engineering Ltd.
• 著者所属(英): en
• 著者所属(英): Riken
• 著者所属(英): en
• 著者所属(英): Riken
• 著者所属(英): en
• 著者所属(英): The University of Tokyo
• 著者所属(英): en
• 著者所属(英): The University of Tokyo / Riken
• 著者所属(英): en
• 著者所属(英): The University of Tokyo
• 著者所属(英): en
• 著者所属(英): Riken
• 著者名: Kazuyasu, Sugiyama; Yasuhiro, Kawashima; Hiroshi, Koyama; Shigeho, Noda; Satoshi, Ii; Shu, Takagi; Yoichiro, Matsumoto; Ryutaro, Himeno
• 著者名(英): Kazuyasu, Sugiyama; Yasuhiro, Kawashima; Hiroshi, Koyama; Shigeho, Noda; Satoshi, Ii; Shu, Takagi; Yoichiro, Matsumoto; Ryutaro, Himeno
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: A scalable numerical algorithm has been reconsidered for massively parallel computations of fluid-structure interaction systems as biological applications. A new Eulerian method using a fixed mesh has been developed to solve the basic equation set for the incompressible Newtonian fluid and hyperelastic material in a finite difference manner. A new artificial compressibility method, corresponding to one of full explicit time-stepping algorithms, with adaptive parameters is proposed. The advocated solver easily attains excellent scalability since it makes the workload on each core equivalent and reduces the amount of node-to-node communication required for the iterative computation. It is applied to wall-bounded flows with biconcave particles, which replicate the shape of red blood cells. The computational performance on a Xeon cluster is presented in terms of a weak scaling and also of a strong scaling with O(109) grid points up to 8,192 cores.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: A scalable numerical algorithm has been reconsidered for massively parallel computations of fluid-structure interaction systems as biological applications. A new Eulerian method using a fixed mesh has been developed to solve the basic equation set for the incompressible Newtonian fluid and hyperelastic material in a finite difference manner. A new artificial compressibility method, corresponding to one of full explicit time-stepping algorithms, with adaptive parameters is proposed. The advocated solver easily attains excellent scalability since it makes the workload on each core equivalent and reduces the amount of node-to-node communication required for the iterative computation. It is applied to wall-bounded flows with biconcave particles, which replicate the shape of red blood cells. The computational performance on a Xeon cluster is presented in terms of a weak scaling and also of a strong scaling with O(109) grid points up to 8,192 cores.
• 書誌情報: ハイパフォーマンスコンピューティングと計算科学シンポジウム論文集; 巻 2012, p. 153-162, 発行日 2012-01-17
• 出版者 / 言語: ja
• 出版者: 情報処理学会