Numerical study on the effect of airflow on powder mixing in a container blender

Powder mixing is critical in many industries. Despite the wide variety of available mixers, container blender favored industries due to easy manufacturing and convenient operation. As fine powders are frequently encountered practical mixing, presence air during may significantly impact process. However, a scientific understanding air–particle interactions powder has not been established so far. From physical view, drag force on particles might be significant when gas velocity high fine. Therefore, this novel study numerically investigates effects particle size under typical conditions, such that relationship between particle–fluid dynamics performance clarified for first time. In calculation, our advanced computational fluid dynamics–discrete element method, namely, flexible Eulerian–Lagrangian method with an implicit algorithm, utilized. To examine effect coarse-grained discrete employed systems. Through numerical framework, airflow can discussed depth. The results show accelerates investigated rotation speeds. Based calculation kinetics distribution, it accelerated from movement entrainment. How developed also elucidated by continuously circulating flow force. Thus, provides new which scientifically previous studies.