Modeling of Particle Separation in Bends of Rectangular Cross-section | Science Publications

American Journal of Applied Sciences

Bingtao Zhao¹ 

关键词: Bends;    Separation Efficiency;    Theoretical Model;   

DOI  :  10.3844/ajassp.2005.394.396

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

A new theoretical model for predicting particle separation efficiency in bends is developedbased on the investigation of flow pattern, the critical particle size separation theory and the boundarylayer separation theory. The radial particle concentration gradient, instead of the usually assumeduniform radial particle concentration within the bends, is considered in this mathematical model. Thelocal particle concentration and the separation efficiency can be calculated on the base of atime-of-flight model in terms of the particle size distribution of the feed. The effects of curvature ratioand bend angle on the separation efficiency in bends are also evaluated by the model.

【 授权许可】

Unknown