基于Fluent低压旋流喷嘴下游流场数值模拟及分析  

Numerical Simulation and Analysis of Downstream Flow Field of Low-Pressure Swirl Nozzle Based on Fluent

作　　者：董星涛[1] 李超[1] 朱健[1] 付方凯[1] 洪张舟[1] 

机构地区：[1]特种装备制造与先进加工技术教育部/浙江省重点实验室(浙江工业大学),浙江杭州310014

出　　处：《轻工机械》2012年第5期25-27,32,共4页Light Industry Machinery

摘　　要：运用Fluent软件模拟了低压旋流喷嘴下游流场喷雾情况。利用欧拉-拉格朗日模型模拟气液两相耦合流动。模拟显示:喷嘴喷雾形状为空心锥状,与实验得到的喷雾形状相符。喷雾的液滴速度分布于15～25m/s之间,且随轴向距离的增大而减小;喷雾的液滴直径沿轴向距离增大而增大。The paper simulated the downstream flow field atomization situation of low-pressure swirl nozzle by using Fluent software. The Euler-Lagrangian models were applied to simulate gas-liquid two phase coupled flow. And the simulation results show that when atomizing liquid spray with hollow cone shape accords with experimental results. The droplet velocity ranged from 15m/s to 25m/s decreases with the spray particle diameter increases; however, diameter of the spray droplet will be increased with the increasing of axial distance along the axle.

关 键 词：数值模拟 旋流喷雾 速度 颗粒直径 Fluent软件 

分 类 号：TB126[理学—工程力学] TQ051[理学—力学]