Simulation of the Rheological Properties of Liquid Media
Containing Solid Anisometric Particles

A. Yu. Zubarev, A. A. Ostroushko, I. V. Bublik, and M. Yu. Sennikov

Gorkii Ural State University, pr. Lenina 51, Yekaterinburg, 620083 Russia

Received July 28, 2006

Abstract—Theoretical simulation of the rheological properties of liquid media containing solid anisometric
particles is performed. Procedures for the calculation of the degree of ordering in the nematic systems under
equilibrium conditions and their rheological characteristics are proposed. Earlier developed notions of the cal-
culation procedures for the properties of systems considered are analyzed and corrections to the theory are sub-
stantiated. Based on developed model notions, equilibrium and transport equations are derived and a program
for their numerical solution is proposed. Model calculations of the lines of phase transition and the ordering of
systems containing isotropic and nematic phases, as well as anisotropic (in orienting field) and effective
dynamic viscosities under the conditions of free flow of such systems, are carried out at various concentrations
and geometry of anisometric particles. A comparison of calculated and experimental data for the solutions of
polymer–salt compositions with induced chain rigidity demonstrates the adequacy of the model proposed.

DOI: 10.1134/S1061933X07060087

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