Title
A nonconforming finite element method for an acoustic fluid-structure interaction problem
Document Type
Article
Publication Date
7-1-2018
Abstract
We study a nonconforming finite element approximation of the vibration modes of an acoustic fluid-structure interaction. Displacement variables are used for both the fluid and the solid. The numerical scheme is based on an irrotational fluid displacement formulation and hence it is free of spurious eigenmodes. The method uses weakly continuous P vector fields for the fluid and classical piecewise linear elements for the solid, and it has O(h ) convergence for the eigenvalues on properly graded meshes. The theoretical results are confirmed by numerical experiments. 1 2
Publication Source (Journal or Book title)
Computational Methods in Applied Mathematics
First Page
383
Last Page
406
Recommended Citation
Brenner, S., Çeşmelioǧlu, A., Cui, J., & Sung, L. (2018). A nonconforming finite element method for an acoustic fluid-structure interaction problem. Computational Methods in Applied Mathematics, 18 (3), 383-406. https://doi.org/10.1515/cmam-2017-0050