Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 19, 2024 - November 20, 2024
Blade-free planetary mixing is a method that mixes materials in a container by precessional rotational motion, which is a combination of the rotation and revolution of the container. This study investigates a method for optimizing the mixing conditions to improve the mixing performance of blade-free planetary mixer. A numerical analysis combining the volume of fluid method and the particle tracking method was used to evaluate the mixing performance of the blade-free planetary mixer for liquids with a free surface. The precession rate, which is the ratio of the rotation speed to the revolution speed, and the container angle were optimized using a genetic algorithm. As a result, the genetic algorithm searched for mixing conditions with high mixing performance with a relatively small number of cases For liquids with a free surface, mixing performance was improved when the rotation speed and revolution speed were the same level and the container angle was small. In addition, under these conditions, the liquid surface was significantly tilted and irregular swirling flows of particles in the fluid were observed.
