On FEM-BEM coupling for fluid-structure interaction analyses in the time domain

✍ Scribed by O. Von Estorff; H. Antes

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 892 KB
• Volume: 31
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620310609

✦ Synopsis

The investigation of coupled fluid-structure systems, subjected to dynamic loads, calls for the use of discrete techniques such as the finite element method (FEM) and the boundary element method (BEM). This paper reports on the development of a FEM-BEM coupling procedure, where finite elements are used to model the linear elastic structure, while the adjacent fluid is represented by boundary elements. The new approach is formulated entirely in the time domain to be extensible to non-linear problems.

Various numerical calculations are presented which clearly demonstrate the applicability and the merits of the hybrid method. The obtained results are in excellent agreement with solutions stemming from a boundary element analysis which uses subdomain techniques.