水力旋流器对磨料分离的CFD模拟研究  

CFD Simulation Study on the Abrasive Separation by Hydrocyclone

作　　者：张雪成 周存龙[1] 江连运[1] 郭瑞[1] 魏聪梅[1] 丁鼎[1] 刘慧 

机构地区：[1]太原科技大学机械工程学院,太原030024 [2]山钢股份济南分公司技术中心,济南250100

出　　处：《太原科技大学学报》2017年第6期455-460,共6页Journal of Taiyuan University of Science and Technology

基　　金：山西省自然科学基金项目(201601D011052)

摘　　要：针对水力旋流器内流场复杂、磨料颗粒间分离规律难以掌握的问题,运用基于计算流体力学和离散相模型理论对水力旋流器内部流场和磨料颗粒的运动规律进行了模拟研究,分析了在不同进口速度下水力旋流器内部静态压力分布、切向速度分布、轴向速度分布和不同密度、粒径的磨料颗粒的运动轨迹等。模拟结果表明,通过改变进口速度可以使水力旋流器内部流场的静态压力、切向和轴向速度,可以改变下部出口流出的磨料颗粒的直径的大小。对水力旋流器在磨料水射流除鳞后的磨料的回收利用方面具有指导意义。Due to the complexity of the fluid field in hydrocyclone and the difficulty of mastering the law of separation between solid particles,the theories of computational fluid dynamics and the discrete phase model are used to simulate the fluid field in hydrocyclone and the motion law of particles. The static pressure distribution,and the tangential velocity,and the axial velocity distribution are analyzed under different inlet velocity of the hydrocyclone. The motion trajectory of particles with different density and diameter are analyzed under different inlet velocity. The results show that the static pressure,the tangential velocity and the axial velocity of the internal flow field of the hydrocyclone can be influenced by changing the inlet velocity,which can change the diameter of the particles excluding from the bottom outlet. The results can guide the abrasive particles recycling of abrasive water jet descaling by hydrocyclone.

关 键 词：水力旋流器 计算流体力学 离散相模型 磨料水射流除鳞 

分 类 号：TG664[金属学及工艺—金属切削加工及机床]