DETERMINATION OF THE RHEOLOGICAL PROPERTIES
OF WHOLE BLOOD BY THE NONSTATIONARY METHOD
OF PULSED CHANGING OF THE RATE OF SHEAR

Z. P. Shul'man and V. A. Mansurov

UDC 612.13

Problems associated with the use of the nonstationary 
method of pulsed changing of the rate of shear for the measurement 
of important viscoplastic properties of whole blood - the critical 
shear stress 0 and the plastic viscosity 
p - are considered. The indicated method 
was compared to the method of stationary rheometry. It is shown that 
the blood-flow curve obtained by this method, unlike that obtained 
by the stationary method, characterizes a viscoplastic medium. To 
calculate the parameters of this medium exactly, it is necessary to 
take into account the dependence of the rate of shear on the above-indicated 
parameters.

A. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, 
Belarus; email: v-man@hmti.ac.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 78, No. 5, pp. 176-179, September-October, 2005. 
Original article submitted November 1, 2004.