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国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.v6.i2.30
pages 141-152

Shear Stress and Shear-Induced Particle Residence in Stenosed Blood Vessels

Lucy T. Zhang
Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, USA

ABSTRACT

Numerical analysis of pulsatile blood flow in stenosed carotid arteries is performed to define hemodynamic factors in the initiation, growth, and potential of leading to severe occlusions of a diseased artery. A fluid-structure interaction algorithm, the immersed finite element method, is used for this study for its convenience in imposing arbitrary stenotic shapes without remeshing. Our computational results provide detailed quantitative analysis on the wall shear stress, shear-induced particle residence time, and oscillatory shear index. The analysis of these parameters leads to a better understanding of blood clot formation and its localization in a stenosed carotid artery. A healthy artery is also studied to establish a baseline comparison.


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