Applied Mathematics and Mechanics (English Edition) ›› 2001, Vol. 22 ›› Issue (4): 409-424.

• 论文 • 上一篇    下一篇

COMPUTER SIMULATION OF NON-NEWTONIAN FLOW AND MASS TRANSPORT THROUGH CORONARY ARTERIAL STENOSIS

李新宇, 温功碧, 李丁   

  1. Mechanics and Engineering Science Department, Peking University, Beijing 100871, P R China
  • 收稿日期:1999-08-12 修回日期:2000-07-16 出版日期:2001-04-18 发布日期:2001-04-18
  • 基金资助:
    the National Natural Science Foundation of China(19732003)

COMPUTER SIMULATION OF NON-NEWTONIAN FLOW AND MASS TRANSPORT THROUGH CORONARY ARTERIAL STENOSIS

LI Xin-yu, WEN Gong-bi, LI Ding   

  1. Mechanics and Engineering Science Department, Peking University, Beijing 100871, P R China
  • Received:1999-08-12 Revised:2000-07-16 Online:2001-04-18 Published:2001-04-18
  • Supported by:
    the National Natural Science Foundation of China(19732003)

摘要: A numerical analysis of Newtonian and non-Newtonian flow in an axi-symmetric tube with a local constriction simulating a stenosed artery under steady and pulsatile flow conditions was carried out. Based on these results, the concentration fields of LDL(low-density lipoprotein)and Albumin were discussed. According to the results, in great details the macromolecule transport influences of wall shear stress, non-Newtonian fluid character and the scale of the molecule etc are given. The results of Newtonian fluid flow and non-Newtonian fluid flow, steady flow and pulsatile flow are compared. These investigations can provide much valuable information about the correlation between the flow properties, the macromolecule transport and the development of atherosclerosis.

Abstract: A numerical analysis of Newtonian and non-Newtonian flow in an axi-symmetric tube with a local constriction simulating a stenosed artery under steady and pulsatile flow conditions was carried out. Based on these results, the concentration fields of LDL(low-density lipoprotein)and Albumin were discussed. According to the results, in great details the macromolecule transport influences of wall shear stress, non-Newtonian fluid character and the scale of the molecule etc are given. The results of Newtonian fluid flow and non-Newtonian fluid flow, steady flow and pulsatile flow are compared. These investigations can provide much valuable information about the correlation between the flow properties, the macromolecule transport and the development of atherosclerosis.

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