标题：Numerical simulation of multiphase flow inside hydrocyclone based on CFD
作者：Zhang, Yuekan ;Liu, Peikun ;Xiao, Linjing ;Yang, Xinghua ;Yang, Junru
作者机构：[Zhang, Yuekan ;Liu, Peikun ;Xiao, Linjing ;Yang, Xinghua ;Yang, Junru ] College of Mechanical and Electronic Engineering, Shandong University of Scie 更多
来源：Computer Modelling and New Technologies
摘要：This paper applied computational fluid dynamics (CFD) method to investigate the internal multiphase flow filed in a 75 mm hydrocyclone. The Reynolds stress model (RSM) and VOF model were employed in the numerical simulation. This study discussed the velocity and pressure distribution in the hydrocyclone, and analysed the formation and development mechanism of air core. The numerical simulation results showed that the flow field was very unstable in the region of the air core. The axial velocity gradient reached its maxima, and the turbulent fluctuation was strongest in the simulation region. This study provided theoretical basis on further research of the air core effect on separation efficiency and pressure drop.