Numerical analysis of blood flow under the oscillatory shear field by means of a bead-spring-damper Model

T. Ishikawa, N. Kawabata, M. Tachibana

Research output: Contribution to journalArticle

Abstract

The blood flow in large arteries is commonly analyzed by means of the constitutive equations. However, it is not appropriate to use constitutive equations for small arteries because of the heterogeneity of the blood. In this paper, a new method to model an erythrocyte by using beads, springs and dampers is proposed as an alternative to analyze the blood flow. The behavior of a single erythrocyte is computed under an oscillatory shear field. The real and imaginary part of dynamic viscosity, dynamic modulus and normal stress difference are discussed. The results show that the bead-spring-damper model appropriately can express the dynamic characteristics of blood. It is therefore considered that the bead-spring-damper erythrocyte model is able to consistently express blood flow without using constitutive equations.

Original languageEnglish
Pages (from-to)2180-2187
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume67
Issue number661
DOIs
Publication statusPublished - 2001 Sep
Externally publishedYes

Keywords

  • Bio-fluid mechanics
  • Erythrocyte
  • Non-newtonian fluid
  • Numerical analysis
  • Oscillatory flow
  • Viscoelastic fluid

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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