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    ARTICLE

    Fluid-Structure Interaction Analysis of Pulsatile Flow within a Layered and Stenotic Aorta

    Zheng-qi Liu, Ying Liu∗,†, Tian-tian Liu, Qing-shan Yang

    Molecular & Cellular Biomechanics, Vol.11, No.2, pp. 129-149, 2014, DOI:10.3970/mcb.2014.011.129

    Abstract In this paper, the hemodynamic characteristics of blood flow and stress distribution in a layered and stenotic aorta are investigated. By introducing symmetrical and unsymmetrical stenosis, the influence of stenosis morphology and stenotic ratio on the coupled dynamic responses of aorta is clarified. In the analysis, the in-vivo pulsatile waveforms and fully fluid–structure interaction (FSI) between the layered elastic aorta and the blood are considered. The results show that the fluid domain is abnormal in the stenotic aorta, and the whirlpool forms at the obstructed and downstream unobstructed regions. The maximum wall shear stresses appear… More >

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