Effect of non-Newtonian property of blood on flow through a stenosed tube

Takuji Ishikawa, Luis F.R. Guimaraes, Shuzo Oshima, Ryuichiro Yamane

研究成果: Article査読

38 被引用数 (Scopus)

抄録

It is well known that the fluid dynamics of arterial blood flow plays an important role in arterial diseases. Periodic blood flow through a stenosed tube was analyzed numerically. The bi-viscosity model is used as a constitutive equation for blood, and the flow is assumed to be periodic, incompressible and axisymmetric. Effects of pulsation and the rheological property of blood are considered. The flow pattern, separated region and the distributions of pressure and shear stress at the wall are obtained. The results show that the non-Newtonian property reduces the strength of the vortex downstream of stenosis and has considerable influence on the flow even at high Stokes and Reynolds numbers, provided that pulsatile flow has a stagnant period.

本文言語English
ページ(範囲)251-264
ページ数14
ジャーナルFluid Dynamics Research
22
5
DOI
出版ステータスPublished - 1998 5 1
外部発表はい

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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