流体机械2017，Vol.45Issue(9)：16-21,6.DOI:10.3969/j.issn.1005-0329.2017.09.004
水力喷射空气旋流器中射—旋流耦合流场的模拟分析
Numerical Simulation of the Jet-cyclone Coupling Flow Field in A Water-sparged Aerocyclone
摘要
Abstract
water-sparged aerocyclone(WSA) is a new and high efficient gas-liquid mass transfer equipment.The distribution of flow field in WSA was simulated by using 3 dimensional(3D) reynolds stress model(RSM) and the multiphase flow model of volume of fluid(VOF).This work aims to explore the distribution rule of coupling velocity field in different area.The simulation results match well with measured pressure drop data.With the increase of gas inlet velocity,the symmetry of distribution of coupling field velocity is continuously weakening,and the attenuation rate of the mean of turbulent kinetic energy turns larger along the vertical direction.The maximum of axial velocity along the radial distribution appears metastasis from the vicinity of the wall near the WSA to the center of the exhaust pipe.Radial velocity reaches a maximum in the middle of the coupling field. Generally there are two extreme values,tangential velocity along the radial distribution,near the WSA wall and the center of the exhaust pipe.The results can provide a reference for more in-depth understanding of WSA.关键词
水力喷射空气旋流器/RSM模型/VOF模型/速度场分布/湍动能/数值模拟Key words
water-sparged aerocyclone/WSA/reynolds stress model/volume of fluid model/velocity field distribution/turbulent kinetic energy/numerical simulation分类
机械制造引用本文复制引用
邱发成,全学军,徐飞..水力喷射空气旋流器中射—旋流耦合流场的模拟分析[J].流体机械,2017,45(9):16-21,6.基金项目
国家自然科学基金项目(21176273) （21176273）
