Analytical review of the proceedings of the conference ”Multiphase Systems: Models, Experiment, Applications“

The presented analytical review includes a short description of the papers sent to the conference ”Multiphase Systems: Models, Experiments, Application“. The review consists of seven thematic sections corresponding to the research areas of the works presented by the authors. The list of sections traditionally present at conferences on multiphase systems has been supplemented with a section on ”Microhydrodynamics and Models of Biomedical Research“, which reflects one of the most rapidly developing areas of science and, at the same time, is closely related to the ideas and methods of mechanics of multiphase media. The works representing such new directions as gas hydrate and hydraulic fracturing research were included in the section ”Theory and practice of multiphase filtration“. The review considers more than sixty works in which the most striking results have been achieved, and most consistent with the spirit of the conference. However, we note that the total number of submitted papers exceeds one hundred and twenty.

Simulation of the operation of the gas refrigerator recurrent complicated ethylene polymer deposits

The work based on the methods and equations of mechanics of multiphase media, the resulting system of ordinary differential equations, describing hydrodynamic and heat and mass transfer processes in counterflow heat exchangers type “pipe in pipe”, where the inner tube flows a mixture of ethylene and polyethylene, and in the annular space counter-current moves water. For gas mixtures is complicated by the “sticking” of liquid polyethylene on the walls of the pipe. In describing the process of formation of the polymer film is considered one of the possible mechanisms for the admission of liquid polyethylene particles from the turbulent core to the surface of the pipe, the turbulent diffusion. The results of studies on the dynamics of accumulation of the plastic film on the inner surface of gas refrigerator returnable ethylene. It is established that the formation of the profile of sediments is complex: the maximum film thickness is shifted to the output section of the channel.