Abstract

For the vast majority of liquids, viscosity is a function that decreases monotonically with increasing temperature. However, a number of substances in which processes of polymerization and depolymerization can occur in a certain temperature range have a viscosity with a nonmonotonic temperature dependence. This dependence, for example, is characteristic of liquid sulfur. In this paper we present the results of a numerical study of the features of the flow of a liquid with a certain model nonmonotonic viscosity dependence on the temperature. The formation of a ”viscous barrier“ that determines the nature of the fluid flow in the channel is established. The main regularities of the flow are determined depending on the parameters of the viscous anomaly and external conditions.