Numerical Analysis of the Physiological Pulsating Flow through a Dilated Artery(<Mini Special Issue>Biomedical Modeling)

DOI
  • LIU Guo-tao
    South China Sea Institute of Oceanology, The Chinese Academy of Sciences:Research Institute, Shenzhen Branch of CNOOC Ltd.
  • LIU Liang-gang
    Faculty of information Technology, Macau University of Science and Technology
  • NAKANO Masahiro
    University of Occupational and Environmental Health Kitakyushu

Abstract

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.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001206077733248
  • NII Article ID
    110007357016
  • DOI
    10.24466/ijbschs.14.1_91
  • ISSN
    2424256X
    21852421
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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