Numerical simulation of blood flow through stenosed tube with moving wall

Takuji Ishikawa, Shuzo Oshima, Ryuichiro Yamane

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

It is well known that the fluid dynamics of arterial blood flow play an important role in arterial disease. The periodic blood flow through a stenosed tube with a moving wall is analyzed numerically. The Windkessel model is used to express arterial wall movement. A revised Casson model which is appropriate for numerical simulation is proposed as a constitutive equation of blood. The flow is assumed to be periodic, incompressible and axisymmetric. The influence of wall movement on flow through a stenosed tube is investigated. The flow pattern, separated region and the distributions of pressure and shear stress at the wall are obtained. The results show that the wall movement reduces the strength of vortex downstream of the stenosis and has considerable influence on the physical quantity of flow at the wall in one period. Therefore, it is concluded that the influence of wall movement should be taken into consideration for blood flow through a stenosed tube.

Original languageEnglish
Pages (from-to)789-797
Number of pages9
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume63
Issue number607
DOIs
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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