污水除油旋流器内流场的CFD模拟

简要地介绍了液-液旋流分离器的工作原理、优点和应用.对旋流器进行几何建模,并对模型进行网格划分和定义边界条件.用计算流体力学CFD数值方法,并采用RSM模型对污水除油旋流器的流场进行了数值模拟.对液-液两相流场进行了研究,得出分离器内部的速度场、压力场、粒子轨迹分布和各相体积分数分布图.初步揭示了液-液两相分离的现象....

CFD simulation of the inner flow field of the oil-water separation hydrocyclone

It briefly introduces the working principles,advantages and applications of the hydrocyclones for liquid-liquid separator.Besides,it carries out geometric modeling for hydrocyclones and then generates mesh and defines the boundary conditions for the model.The inner flow field of the Oil-Water Separation Hydrocyclone was simulated using the CFD,and with the Reynolds Stress Modle RSM.liquid-liquid two phase flow field is also studied and obtains the velocity field、pressure field、distribution of particle trajectory and each phase distribution of volume fraction inside the separator.Reveals the phenomenon of liquid-liquid two phase separation.Analyze the impacts of operating parameters and structural parameters of Hydrocyclone on the separating efficiency,it makes analysis for the effects of inlet flow rate、inlet pressure、particle diameter and overflow pipe diameter on separation efficiency.Meanwhile,it finally draws relative conclusions.These will provide future study on influence of hydrocyclone＇s parameters on separation efficiency and optimization of hydrocyclone.