Lattice Boltzmann simulation of blood cell behavior at microvascular bifurcations

Toru Hyakutake, Takeshi Matsumoto, Shinichiro Yanase

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Lattice Boltzmann simulations of a particulate suspension in plane Poiseuille flow and two-dimensional bifurcation flow are conducted to investigate the blood cell behavior at microvascular bifurcations. The simulation results of Poiseuille flow at a low hematocrit reveal that particles are concentrated between the centerline and the wall. This phenomenon indicates the occurrence of the Segré-Silberberg effect. On the other hand, as the hematocrit increases, this effect disappears and the number of particles flowing near the wall and the centerline increases. In the case of bifurcation flow, at a high hematocrit, the fractional particle flux to a daughter branch is almost similar to the fractional bulk flow to the same branch. However, at a low hematocrit, the fractional particle flux against the fractional bulk flow increases.

Original languageEnglish
Pages (from-to)134-140
Number of pages7
JournalMathematics and Computers in Simulation
Volume72
Issue number2-6
DOIs
Publication statusPublished - Sep 9 2006

Keywords

  • Bifurcation flow
  • Blood cell
  • Lattice Boltzmann method
  • Microvascular flow
  • Poiseuille flow

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)
  • Numerical Analysis
  • Modelling and Simulation
  • Applied Mathematics

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