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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Published in | 2021 IEEE 6th International Conference on Computer and Communication Systems (ICCCS) pp. 81 - 86 |
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Main Authors | , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
23.04.2021
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Subjects | |
Online Access | Get full text |
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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. |
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DOI: | 10.1109/ICCCS52626.2021.9449132 |