Numerical Analysis of the Physiological Pulsating Flow through a Dilated Artery(<Mini Special Issue>Biomedical Modeling)
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概要
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In this work, numerical study of pulsating blood flow through the models of the dilated arteries have been studied. A mathematical model of the axially symmetric dilated rigid artery is introduced. The impressible Navier-Stokes equations are solved numerically by using the finite difference method. Effects of the Reynolds number (Re), the Strouhal number (St) and the degree of the dilation (δ) are considered. The calculations based on the geometry and the flow conditions representing a real physiological situation as closely as possible suggest that depending on the values of Re, St and δ. The streamline patterns depict the temporal flow characteristics. Finally, the effect of the wall geometry on the distribution of the wall shear stress is studied. The results show that the dilation disturbs the flow field within an aneurysm and the disturbed blood flow may lead to the formation of a thrombus, increasing the risk of rupture.
- バイオメディカル・ファジィ・システム学会の論文
著者
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NAKANO Masahiro
University of Occupational and Environmental Health
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Liu Liang-gang
Faculty Of Information Technology Macau University Of Science And Technology
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Liu Guo-tao
South China Sea Institute Of Oceanology The Chinese Academy Of Sciences:research Institute Shenzhen
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Nakano Masahiro
University Of Occupational And Environmental Health Kitakyushu
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