Analysis of the effect of flow channel structures on the centrifugal accelerated motion of particles in a vacuum state

Abstract

Abstract In this study, the impact of flow channel structures on the acceleration of metal particles in a vacuum environment is explored, with the aim of enhancinge the acceleration quality in the centrifugal impact molding of metal powders. To assess this phenomenon, three evaluation indices are introduced: the average speed of particles thrown $${V}_{p}$$ V p , the average speed of the particles $${V}_{all}$$ V all , and the particle velocity distribution V f (t). Additionally, the effects of six distinct runner structures on the centrifugal acceleration of the particles are analyzed in this research. The findings indicate that the arc-shaped flow channel structure not only ensures a more consistent acceleration process but also results in a higher ejection speed, leading to an improved acceleration effect. The unique contribution of this study is the examination of the relationship between flow channel designs and particle accelerations in a vacuum.

Keywords

• Particle
• Centrifugal acceleration
• Runner structure
• Discrete-element method
• Vacuum