A fully implicit domain decomposition based ALE framework for three-dimensional fluid-structure interaction with application in blood flow computation

作者：Wu Yuqi^*; Cai Xiao Chuan

来源：Journal of Computational Physics, 2014, 258: 524-537.

DOI：10.1016/j.jcp.2013.10.046

• Fluid-structure interaction
• Blood flow simulation
• Restricted additive Schwarz
• Domain decomposition
• Fully implicit
• Monolithic coupling
• Parallel computing

Due to the rapid advancement of supercomputing hardware, there is a growing interest in parallel algorithms for modeling the full three-dimensional interaction between the blood flow and the arterial wall. In [4], Barker and Cai developed a parallel framework for solving fluid-structure interaction problems in two dimensions. In this paper, we extend the idea to three dimensions. We introduce and study a parallel scalable domain decomposition method for solving nonlinear monolithically coupled systems arising from the discretization of the coupled system in an arbitrary Lagrangian-Eulerian framework with a fully implicit stabilized finite element method. The investigation focuses on the robustness and parallel scalability of the Newton-Krylov algorithm preconditioned with an overlapping additive Schwarz method. We validate the proposed approach and report the parallel performance for some patient-specific pulmonary artery problems. The algorithm is shown to be scalable with a large number of processors and for problems with millions of unknowns.

• 出版日期2014-2-1