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Computational analysis of high frequency fluid-structure interactions in constricted flow
Date
2013-06-01
Author
Salman, HÜSEYİN ENES
Sert, Cüneyt
Yazıcıoğlu, Yiğit
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Constricted flow in a thin cylindrical shell with an idealized blunt constriction is modeled using ADINA. Highly disturbed recirculation region is observed at the constriction exit where pressure fluctuations and consequential vessel wall vibrations display broadband spectral content over a range of several hundred Hz. Maximum dynamic pressure and vibration amplitudes are observed around the reattachment point and they gradually decrease along downstream of flow. Results obtained by numerical simulations are compared with relevant studies in the literature and are in good agreement in terms of general spectral behavior. However, the amplitudes were significantly lower as compared to experimental results.
Subject Keywords
Fluid structure interaction
,
Blood flow simulation
,
Stenosis
,
Constricted flow
,
Vessel wall vibration
URI
https://hdl.handle.net/11511/33235
Journal
COMPUTERS & STRUCTURES
DOI
https://doi.org/10.1016/j.compstruc.2012.12.024
Collections
Department of Mechanical Engineering, Article
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H. E. Salman, C. Sert, and Y. Yazıcıoğlu, “Computational analysis of high frequency fluid-structure interactions in constricted flow,”
COMPUTERS & STRUCTURES
, pp. 145–154, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33235.