Studies of the strong coupling and weak coupling methods in FSI analysis
Studies of the strong coupling and weak coupling methods in FSI analysis
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DOI：
10.1002/nme.1034
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发表时间：
2004-07
影响因子：
2.9
通讯作者：
Qun Zhang;T. Hisada
中科院分区：
文献类型：
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作者：
Qun Zhang;T. Hisada
将流固耦合分析中的弱耦合方法重新划分为三类：求解有界面结构的弱耦合方法、求解有界面流体的弱耦合方法和求解有界面流体和结构的弱耦合方法。这些弱耦合方法的一致附加矩阵是从强耦合公式的凝聚中导出的。提出了相容附加矩阵的一些近似方法，避免了矩阵耦合。阐明了弱耦合方法收敛困难的原因。一些数值结果研究这些方法的收敛性和计算效率。版权所有© 2004年约翰威利父子有限公司。
The weak coupling methods in fluid–structure interaction analysis are newly classified into three types; the weak coupling method for solving structures with interfaces, the weak coupling method for solving fluids with interfaces, and the weak coupling method for solving both fluids and structures with interfaces. The consistent added matrices of these weak coupling methods are derived from the condensation of the strong coupling formulation. Some approximations for the consistent added matrices, which can avoid the matrix coupling, are proposed. The reasons for convergence difficulty in the weak coupling methods are clarified. A number of numerical results are presented to investigate the convergence properties and computational efficiency of these methods. Copyright © 2004 John Wiley & Sons, Ltd.