Comparing of loose and strong finite element partitioned coupling methods of acoustic fluid-structure interaction: Concrete dam-reservoir system

2016 ◽  
Vol 21 (3) ◽  
pp. 807-817 ◽  
Author(s):  
Farhoud Kalateh ◽  
Ali Koosheh
Keyword(s):  
Finite Element ◽  
Fluid Structure Interaction ◽  
Dam Reservoir ◽  
Concrete Dam ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Reservoir System ◽  
Coupling Methods ◽  
Acoustic Fluid

A Nonconforming Finite Element Method for an Acoustic Fluid-Structure Interaction Problem

2018 ◽  
Vol 18 (3) ◽  
pp. 383-406 ◽  
Author(s):  
Susanne C. Brenner ◽  
Ayçıl Çeşmelioğlu ◽  
Jintao Cui ◽  
Li-Yeng Sung
Keyword(s):  
Finite Element ◽  
Piecewise Linear ◽  
Fluid Structure Interaction ◽  
Element Approximation ◽  
Nonconforming Finite Element ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Weakly Continuous ◽  
Graded Meshes ◽  
Acoustic Fluid

AbstractWe 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_{1}} vector fields for the fluid and classical piecewise linear elements for the solid, and it has {O(h^{2})} convergence for the eigenvalues on properly graded meshes. The theoretical results are confirmed by numerical experiments.

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