Fixed-mesh approach for different dimensional solids in fluid flows : application to biological mechanics

Miyauchi, Suguru; Ito, Azusa; Takeuchi, Shintaro et al.

Journal of Mechanical Engineering and Sciences, 2014, 6, 818-844

Number of Access:1,516（2025-08-26 06:55 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/71460

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Title
Fixed-mesh approach for different dimensional solids in fluid flows : application to biological mechanics
Creator
NRID
1000000758691 1000000758691
CreatorName
Miyauchi, Suguru
CreatorName
Ito, Azusa
NRID
1000050372628 1000050372628
ORCID
0000-0003-0091-4542 0000-0003-0091-4542
researchmap permalink
50372628 50372628
Scopus Author ID
35474283000 35474283000
CreatorName
Takeuchi, Shintaro
NRID
1000030185772 1000030185772
CreatorName
Kajishima, Takeo
Description
S. Miyauchi, A. Ito, S. Takeuchi and T. Kajishima, "Fixed-mesh approach for different dimensional solids in fluid flows : application to biological mechanics", Journal of Mechanical Engineering and Sciences, Vol. 6, pp.818-844, UMP, 2014
Abstract
For simulations of biological flows, our original immersed solid method and feedback immersed boundary method are coupled to deal with the interaction between a fluid and solids of different dimensional topologies. The mesh used in both methods is non-conforming with respect to the fluid-solid interface, and the coupled approach facilitates the handling of the fluid-structure interaction including large deformation of the solids. We show the validity of our method through simulations of static and dynamic benchmark problems. The results of the simulations confirmed that our method has a first order accuracy and shows good agreement with the strong coupling method reported in the literature. As for examples of biological flow, the expiratory flow through vocal cords and pulsative flow through an elastic channel with fibers are analyzed. For the flow through vocal cords, the vocal cords exhibit different vibration modes depending on the initial clearance of the vocal cords, regardless of the contacts of the vocal cords. For the flow through the elastic channel with fibers, fibers decrease the wall shear stress, and the elasticity of the wall enhances the reduction of the wall shear stress.
Publisher
Universiti Malaysia Pahang Publishing
Source Title
Journal of Mechanical Engineering and Sciences
Volume (Issue)
6
Page
818-844
Date of Issued
2014-06
Language
English
Handle URL
https://hdl.handle.net/11094/71460
PISSN
22894659
eISSN
22318380
Access Rights
open access
CopyRight
© Universiti Malaysia Pahang, Malaysia. This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article