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1 Acta of Bioengineering and Biomechanics

1 2003

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Comparison between the discrete erythrocyte method and constitutive equations for blood

Takuji I., Nobuyoshi K., Motoyoshi T.

Acta of Bioengineering and Biomechanics

2003

Vol. 5, nr 1

21-34

There are a number of methods for analyzing blood flow; however, their applicability and advantages are not sufficiently clear. In this research, the characteristics of a discrete erythrocyte method (DEM). Which is proposed by the present authors, are compared with constitutive equations for blood. The Casson model and a pseudo-Casson model are chosen and compared with the DEM. By discussing the advantages and disadvantages of DEM, its applicability to blood flow simulation is clarified. The results show that the DEM is an appropriate method for simulating the blood flow in small vessels. Moreover, the DEM can express certain rheological properties that are not expressed by the constitutive equations.