F2-3 Balancing Domain Decomposition for Non-stationary Incompressible Flow Problems Using a Characteristic-curve Method
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概要
- 論文の詳細を見る
The presence of nonlinear convection terms complicates the solving of the non-stationary Navier-Stokes equations, and this difficulty increases with the Reynolds number. In this work, the characteristic-curve method is employed to handle this term. The method is advantageous as it renders the matrix for linear equations symmetric, thus enabling the Conjugate Gradient (CG) method to be used together with the Schur complement system of the Domain Decomposition Method (DDM). By using a stabilization technique, the inf-sup condition need not be met for P1/P1 elements, which are swift and efficient to be implemented. The algorithm is implemented in parallel by the Hierarchical Domain Decomposition Method (HDDM), and it is feasible to solve large scale models over 100 million Degrees Of Freedom (DOF).
- 一般社団法人日本機械学会の論文
- 2009-10-10
著者
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NOTSU Hirofumi
Research Center for Hydrogen Industrial Use and Storage (HYDROGENIUS), National Institute of Advance
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OGINO Masao
Department of Intelligent Machinery and Systems, Faculty of Engineering, Kyushu University
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Kanayama Hiroshi
Department Of Intelligent Machinery And Systems Graduate School Of Engineering Kyushu University
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Masao Ogino
Department Of Intelligent Machinery And Systems Faculty Of Engineering Kyushu University
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Kanayama Hiroshi
Department Of Mechanical Engineering Faculty Of Engineering Kyushu University:aist
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Yao Qinghe
Department of Intelligent Machinery and Systems. Graduate School of Engineering, Kyushu University
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Kanayama Hiroshi
Department Of Mechanical Engineering Faculty Of Engineering Kyushu University
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Yao Qinghe
Department Of Intelligent Machinery And Systems. Graduate School Of Engineering Kyushu University
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Ogino Masao
Department Of Mechanical Engineering Faculty Of Engineering Kyushu University
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Notsu Hirofumi
Research Center For Hydrogen Industrial Use And Storage (hydrogenius) National Institute Of Advanced
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OGINO Masao
Department of Hygiene Service, Himeji Livestock Hygiene Service Center, 2-10-16, Tadera-higashi, Himeji, Hyogo 670-0081, Japan
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