228852
20181203024728.0
0254-9409
10.4208/jcm.1702-m2016-0630
doi
000401098400006
ISI
ARTICLE
A parallel algorithm for the solution of large-scale nonconforming fluid-structure interaction problems in hemodynamics
Wanchai
2017
Global Science Press
2017
18
Journal Articles
In this work we address the numerical solution of large scale fluid-structure interaction problems when nonconforming grids and⁄or nonconforming finite elements discretizations are used at the interface separating the fluid and structure physical domains. To deal with nonconforming fluid-structure discretizations we use the INTERNODES method (INTER-polation for NOnconforming DEcompositionS) formerly introduced in [6] for the solution of elliptic PDEs on nonconforming domain decomposition. To cope with the high computational complexity of the three dimensional FSI problem obtained after spatial and temporal discretization, we use the block parallel preconditioner FaCSI [7]. A numerical investigation of the accuracy properties of INTERNODES applied to the nonconforming FSI problem is carried out for the simulation of the pressure wave propagation in a straight elastic cylinder. Finally, we study the scalability performance of the FaCSI preconditioner in the nonconforming case by solving a large-scale nonconforming FSI problem in a patients-pecific arterial bypass.
Fluid-Structure Interaction
Domain Decomposition
Nonconforming discretizations
INTERNODES
Biomechanics
Parallel Preconditioners
High Performance Computing
Forti, Davide
214420
246876
Quarteroni, Alfio
118377
240286
Deparis, Simone
121157
241667
363-380
3
Journal of Computational Mathematics -International Edition-
35
CMCS
252102
U10797
oai:infoscience.tind.io:228852
article
SB
121157
EPFL-ARTICLE-228852
EPFL
PUBLISHED
REVIEWED
ARTICLE