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Numerical Stability of Partitioned Approach in Fluid-Structure Interaction for a Deformable Thin-Walled Vessel
Joint Authors
Thavornpattanapong, Pongpat
Wong, Kelvin K. L.
Tu, Jiyuan
Cheung, Sherman C. P.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-08
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Added-mass instability is known to be an important issue in the partitioned approach for fluid-structure interaction (FSI) solvers.
Despite the implementation of the implicit approach, convergence of solution can be difficult to achieve.
Relaxation may be applied to improve this implicitness of the partitioned algorithm, but this commonly leads to a significant increase in computational time.
This is because the critical relaxation factor that allows stability of the coupling tends to be impractically small.
In this study, a mathematical analysis for optimizing numerical performance based on different time integration schemes that pertain to both the fluid and solid accelerations is presented.
The aim is to determine the most efficient configuration for the FSI architecture.
Both theoretical and numerical results suggest that the choice of time integration schemes has a significant influence on the stability of FSI coupling.
This concludes that, in addition to material and its geometric properties, the choice of time integration schemes is important in determining the stability of the numerical computation.
A proper selection of the associated parameters can improve performance considerably by influencing the condition of coupling stability.
American Psychological Association (APA)
Wong, Kelvin K. L.& Thavornpattanapong, Pongpat& Cheung, Sherman C. P.& Tu, Jiyuan. 2013. Numerical Stability of Partitioned Approach in Fluid-Structure Interaction for a Deformable Thin-Walled Vessel. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-487255
Modern Language Association (MLA)
Wong, Kelvin K. L.…[et al.]. Numerical Stability of Partitioned Approach in Fluid-Structure Interaction for a Deformable Thin-Walled Vessel. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-487255
American Medical Association (AMA)
Wong, Kelvin K. L.& Thavornpattanapong, Pongpat& Cheung, Sherman C. P.& Tu, Jiyuan. Numerical Stability of Partitioned Approach in Fluid-Structure Interaction for a Deformable Thin-Walled Vessel. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-487255
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-487255