Fluid-Structure Interaction in Abdominal Aortic Aneurysm: Effect of Modeling Techniques
Joint Authors
Lin, Shengmao
Gu, Linxia
Han, Xinwei
Bi, Yonghua
Ju, Siyeong
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-22
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this work, the impact of modeling techniques on predicting the mechanical behaviors of abdominal aortic aneurysm (AAA) is systematically investigated.
The fluid-structure interaction (FSI) model for simultaneously capturing the transient interaction between blood flow dynamics and wall mechanics was compared with its simplified techniques, that is, computational fluid dynamics (CFD) or computational solid stress (CSS) model.
Results demonstrated that CFD exhibited relatively smaller vortexes and tends to overestimate the fluid wall shear stress, compared to FSI.
On the contrary, the minimal differences in wall stresses and deformation were observed between FSI and CSS models.
Furthermore, it was found that the accuracy of CSS prediction depends on the applied pressure profile for the aneurysm sac.
A large pressure drop across AAA usually led to the underestimation of wall stresses and thus the AAA rupture.
Moreover, the assumed isotropic AAA wall properties, compared to the anisotropic one, will aggravate the difference between the simplified models with the FSI approach.
The present work demonstrated the importance of modeling techniques on predicting the blood flow dynamics and wall mechanics of the AAA, which could guide the selection of appropriate modeling technique for significant clinical implications.
American Psychological Association (APA)
Lin, Shengmao& Han, Xinwei& Bi, Yonghua& Ju, Siyeong& Gu, Linxia. 2017. Fluid-Structure Interaction in Abdominal Aortic Aneurysm: Effect of Modeling Techniques. BioMed Research International،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1138334
Modern Language Association (MLA)
Lin, Shengmao…[et al.]. Fluid-Structure Interaction in Abdominal Aortic Aneurysm: Effect of Modeling Techniques. BioMed Research International No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1138334
American Medical Association (AMA)
Lin, Shengmao& Han, Xinwei& Bi, Yonghua& Ju, Siyeong& Gu, Linxia. Fluid-Structure Interaction in Abdominal Aortic Aneurysm: Effect of Modeling Techniques. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1138334
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1138334