Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11247
Title: Fluid-structure interaction in a pulmonary arterial bifurcation
Authors: Yang, XL
Liu, Y 
Yang, JM
Issue Date: 2007
Source: Journal of biomechanics, 2007, v. 40, no. 12, p. 2694-2699
Abstract: A numerical method is developed to solve the fluid-structure interaction in three-dimensional pulmonary arterial bifurcation with collapsible tubes. A self-developed FEM code is used to calculate the nonlinear deformation of the thin-walled structure and a commercial CFD solver, FLUENT, is used to resolve the fluid flow. The large deformation of the structure alters the flow field significantly while the fluid pressure affects the deformation of the structure strongly. In the bifurcation branches, the relatively short tube collapses into wave number N = 3 mode. The strong collapse of the branch tube leads to a large contraction of the cross-sectional area and increases the resistance on the fluid flow. The recirculation occurs at both the up- and down-stream of the collapsed tube.
Keywords: Collapsible tubes
Fluid-structure interaction
Pulmonary arterial bifurcation
Publisher: Elsevier
Journal: Journal of biomechanics 
ISSN: 0021-9290
DOI: 10.1016/j.jbiomech.2007.01.008
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