Simulation of the hydrodynamics in polymerizers based on the CFD model for the synthesis of rubbers and plastics using the method of the solution polymerization

Abstract

Abstract Mixing in a viscous medium, such as in polymerization processes, is worth noting. To control the polymerization process for improving the product quality, it is important to understand the mixing process. Also, it is essential to understand the flow behaviour in the stirred-tank reactor for the equipment design and from the point of view of the large-scale transition of the process. Local and general characteristics of mixing in the reactor are related to the design and selected speed of the agitator. 3D-modeling of the flow in the cylindrical reactor with the paddle stirrer was carried out using the potential of a supercomputer. Numerical results showed good consistency with experimental results and correlation developed by other researchers. To determine the best mode of introduction into the paddle space of the stirrer, two efficiency criteria were used: with respect to power and mixing time.