流体机械2016，Vol.44Issue(8)：22-27,21,7.DOI:10.3969/j.issn.1005-0329.2016.08.005
胶乳分离机高速转鼓内流场的数值分析
Numerical Analysis on Flow-field Characteristics of High-Speed Bowl of Latex Disc-separator
摘要
Abstract
In order to obtain distribution of flow field in centrifugal field in high-speed bowl of latex disc-separator,and to establish the relations among pressure-field,velocity-field and latex physical characteristics,blow structural,rotate speed. The model building、boundary restriction conditions and numerical computation method have been examined and debugged based on the FLUENT. The flow-field in the rotating bowl was numerically simulated by the two-dimensional flow field model abiding by principle of hybrid multiple phase flow and laminar flow model. The nephograms of pressure and velocity,the diagram of velocity vector were obtained. The pressure field and the velocity field were quantitatively analyzed under different velocities. The modeling vertification method based on character-istic parameter was proposed. The results indicate that the flow-pressure and the flow-velocity are proportional to the bowl rotation speed and the radius of liquid. Flow pressure is directly proportional to the rotation speed into a quadratic liner relationship,the flow velocity is directly proportional to the rotation speed into a liner relationship. The maximum liquid pressure increases up to 10. 4 MPa in the working speed. The vortex phenomenon of the outlet of heavy phase is more obviously than that of the outlet of light phase. The flow be-tween two discs is primarily laminar. The simulation results are accordant with with the data taken from the theoretical calculation,the document and the experiments. The results show the validity of the model and analysis methods. The methods and results can provide more guidance and reference for analysis of latex centrifugal process and flow filed,structure optimize of latex disc-separator.关键词
胶乳分离机/转鼓/数值模拟/压力场/速度场/模型验证Key words
latex separator/bowl/numerical simulation/pressure field/velocity field/model verification分类
机械制造引用本文复制引用
薛晓宁,石凯..胶乳分离机高速转鼓内流场的数值分析[J].流体机械,2016,44(8):22-27,21,7.基金项目
广东省教育厅科研基金项目(B9810) （B9810）
湛江市科技计划项目(B01490) （B01490）
