DEPENDENCE OF THE VISCOSITY ON THE CONCENTRATION OF PARTICLES BY THE
EXAMPLE OF BLOOD AND ERYTHROCYTIC SUSPENSIONS

Z. P. Shul'man and I. V. Yamaikina

UDC 532.529+527

A model of the dependence of the relative viscosity of 
blood and suspensions of erythrocytes on their volume concentration 
is proposed. Both parameters of the model correlate differently with 
each other in three regions of erythrocyte concentrations (for man: 
Hct < 0.3, Hct = 0.3-0.7, Hct > 0.7). They change abruptly when going 
through the boundaries of the regions. It is suggested that one of them 
reflects the intensity of interaction of particles in a suspension and 
the other is related to the effective radius of hydrodynamic resistance. 
The model adequately describes the experimental data on the rheology 
of protein solutions and other suspensions.

A. V. Luikov Heat and Mass Transfer Institute, Academy 
of Sciences of Belarus, Minsk, Belarus. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 76, No. 3, pp. 165-168, May-June, 2003. Original 
article submitted October 16, 2002.