基于计算流体力学的抛物面壁旋流器数值仿真研究  

Numerical Simulation Study of Parabolic Wall Cyclone Based on Computational Fluid Dynamies

作　　者：吴思拓 兰雅梅[1] WU Si-tuo;LAN Ya-mei(Engineering College,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]上海海洋大学工程学院,上海201306

出　　处：《石油化工设备》2025年第1期33-42,共10页Petro-Chemical Equipment

摘　　要：为了进一步提高小型水力旋流器分离细微颗粒的能力,提出一种新型抛物面壁水力旋流器。应用计算流体力学软件Fluent分析比较了抛物面壁和圆锥面壁在不同条件下的分离特性、内部流场及颗粒物轨迹规律。在综合考虑分离效率以及体积大小的基础上,对抛物面壁进行选型优化。结果表明,抛物面壁旋流器各项分离性能的指标均更佳,压力梯度与速度梯度优势更明显,整体分离效率更高。得到最佳结构参数为,底流口直径8 mm、锥体高度175.54 mm,抛物线方程为y=-0.39164x^(2)+19.7166x-318.14。In order to enhance the efficacy of small hydrocyclones in the separation of fine particles,a new type of parabolic wall hydrocyclone was proposed.Computational fluid dynamics software Fluent was employed to analyse and compare the separation characteristics,internal flow field and particle trajectory law of parabolic and conical walls under different conditions.In light of the aforementioned criteria,the parabolic wall was selected and optimised.The results demonstrate that the new parabolic wall cyclone exhibits superior separation performance indicators,a more pronounced pressure and velocity gradient,and enhanced overall separation efficiency.The optimal parameters are as follows:the diameter ofthe bottom flow opening is 8 mm,the height of the cone is 175.54 mm,and the parabolic equation is y=-0.39164x^(2)+19.7166x-318.14.

关 键 词：旋流器 抛物面壁 分离效率 结构参数 数值模拟 优化 

分 类 号：TQ050.84[化学工程]