Reduced order models for fluid-solid interaction systems with mixed finite element formulations
Document Type
Conference Proceeding
Publication Date
8-24-2010
Abstract
In this paper, we employ fluid-structure interaction (FSI) systems with both immersed flexible structures and free surfaces to study singular value decomposition (SVD) based model reduction methods and traditional mode superposition methods. Our numerical results confirm that SVD-based model reduction methods are reliable. Excellent comparisons are obtained between original transient solutions and recovered data composed with only a few dominant principal components. For acoustoelastic FSI systems, we employ a three-field mixed finite element formulation with displacement, pressure, and vorticity moment unknowns. Our numerical examples also demonstrate that mixed finite element formulations can predict different ranges of coupled frequencies and mode shapes without the contamination of spurious nonzero frequencies. © 2010 American Institute of Physics.
Identifier
77955748216 (Scopus)
ISBN
[9780735407787]
Publication Title
Aip Conference Proceedings
External Full Text Location
https://doi.org/10.1063/1.3452092
e-ISSN
15517616
ISSN
0094243X
First Page
1303
Last Page
1308
Issue
PART 1
Volume
1233
Recommended Citation
Yang, Ye; Wu, Tao; and Sheldon Wang, X., "Reduced order models for fluid-solid interaction systems with mixed finite element formulations" (2010). Faculty Publications. 6139.
https://digitalcommons.njit.edu/fac_pubs/6139
