TY  - EJOU
AU  - Chen, Yuan  
AU  - Duan, Honggang  
AU  - Yu, Fei  
AU  - Zhao, Xingyu  
AU  - Xu, Han  
AU  - Gao, Jun  

TI  - Parametric Study of Bubble Kinematic Behaviour in a Centrifugal Vacuum Separator
T2  - Fluid Dynamics \& Materials Processing

PY  - 2015
VL  - 11
IS  - 2
SN  - 1555-2578

AB  - The dynamics of dispersed bubbles in a centrifugal separator are investigated with the aim to improve the efficiency of the system. The prototype separator consists of a rotor, a base, a diverting disc, a shaft, an oil trapping impeller, a central pipe, an inlet section for contaminated oil, an outlet section for purified oil and an air outlet. A hydrodynamic model is developed to predict the complex influence of parameters such as the centrifugal force and vacuum pressure. In particular, three different force models are selected to analyze the effect of the added mass and Basset forces (also including inertia, and the buoyancy and drag forces). The bubble kinematic behaviour is simulated in detail by using a discretephase numerical method. Results show that gas concentration and vacuum pressure can significantly influence the removal of bubbles.
KW  - bubble
KW  -  bubble kinematic behaviour
KW  -  gas–liquid–solid separator
KW  -  contaminated oil

DO  - 10.3970/fdmp.2015.011.127