An investigation on the effects of rotating modes on the mixing efficiency of the twin-blade planetary mixer

Advances in Mechanical Engineering

卷:18

Original research article

Chunyan Wang ; Jian Liang ; Hua Huo

[1] School of Software, Henan University of Science and Technology, Luoyang, Henan, China

[2] School of Graduate, Henan University of Science and Technology, Luoyang, Henan, China

[3] School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China

关键词: twin-blade planetary mixer;    energetic materials;    dynamic mesh;    Newtonian fluids;    laminar flow;    CFD;   

DOI  :  10.1177/16878132261484395

 received in 2026-03-07, accepted in 2026-08-13,  发布年份 2026

来源: Sage Journals

【 摘 要 】

Twin-blade planetary mixers are one of important production devices for energetic materials. In order to investigate the effects of different rotating modes on the mixing efficiency inside mixing vessel of the twin-blade planetary mixer, computational fluid dynamics (CFD) software ANSYS Fluent 14.5 was utilized for solving the governing equations. Two parameters (the trajectory and the instantaneous speed of blade tip) were selected for blades kinetic analysis, and four variables (dimensionless Helicity, relative pressure, strain rate, and flow number) for fluid field analysis. Mixing time experiments were conducted utilizing alternate transparent materials. The numerical predictions illustrated the experimental results well, and the counter-rotating mode was more efficient than the co-rotating mode for the mixer via providing stranger strain rate. The existing of hollow blade can improve dispersive mixing and distributive mixing, which in turn improves mixing efficiency.

【 授权许可】

CC BY-NC   
© The Author(s) 2026