Parallel Numerical Simulation of Human Left Ventricular Diastole Based on Fluid-structure Interaction

In this paper, we propose a parallel fluid-structure interaction solution method for the simulation of the diastolic process of the human left ventricle. The three dimensional geometry of a patient-specific left ventricle is first segmented from a medical image, and then based on which an unstructur...

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Bibliographic Details
Published in2021 IEEE 6th International Conference on Computer and Communication Systems (ICCCS) pp. 81 - 86
Main Authors Chang, Yujia, Jiang, Yi, Chen, Rongliang
Format Conference Proceeding
LanguageEnglish
Published IEEE 23.04.2021
Subjects
Conferences
Finite element analysis
finite element method
fluid-structure interaction
Geometry
Heart
Image segmentation
Numerical simulation
Parallel computing
patient-specific left ventricle
Supercomputers
unstructured mesh
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Summary:In this paper, we propose a parallel fluid-structure interaction solution method for the simulation of the diastolic process of the human left ventricle. The three dimensional geometry of a patient-specific left ventricle is first segmented from a medical image, and then based on which an unstructured mesh is generated. The coupled fluid-structure interaction equations are spatially discretized by a finite element method on the unstructured mesh and a fully implicit scheme is introduced for the temporal discretization. At each timestep of the fully implicit method, a scalable parallel method is applied for solving the large scale nonlinear system. Numerical experiments show that the proposed method scales up to 1920 processor cores on the Tianhe-2A supercomputer for solving a problem with over 7.9 million unstructured tetrahedrons, which shows a potential to do high-fidelity simulation of human heart for clinical applications.
DOI:10.1109/ICCCS52626.2021.9449132