Premium
Three‐dimensional non‐linear fluid‐structure interaction problems: Formulation by the finite and infinite element method
Author(s) -
Feng Y. Q.,
Quevat J. P.
Publication year - 1990
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620300603
Subject(s) - finite element method , fluid–structure interaction , mathematics , mixed finite element method , cylinder , mathematical analysis , perturbation (astronomy) , extended finite element method , matrix (chemical analysis) , finite element limit analysis , hydroelasticity , geometry , physics , structural engineering , engineering , materials science , quantum mechanics , composite material
Using the perturbation method, the non‐linear exterior fluid‐structure interaction problem is separated into first‐ and second‐order problems. With the finite element method for the structure and the finite‐infinite element method for the fluid, we obtain a first‐order coupled matrix system and a second‐order coupled matrix system. By determining the frequencies of resonance of the structure, comparison of numerical results for a vertical cylinder and a horizontal floating cylinder shows the validity of the presented method for the resolution of three‐dimensional exterior hydroelastic problems.