空气喷嘴流场数值仿真及特性研究  

Numerical Simulation and Characteristics Study of Air Nozzle Flow Field

作　　者：黄垂浪 张振东[1] 陈忠[1] 

机构地区：[1]上海理工大学机械工程学院,上海市200093

出　　处：《农业装备与车辆工程》2017年第5期5-10,共6页Agricultural Equipment & Vehicle Engineering

基　　金：教育部博士点基金资助项目(200802520001)

摘　　要：为了研究空气喷嘴参数对雾化流场的影响,运用Solid Works软件根据已有空气喷嘴的结构建立雾化流体域模型。通过计算流体动力学(CFD)仿真软件Fluent,采用标准的k-ε湍流模型,运用Ansys Icem软件划分非结构性四面体网格的方法,对空气喷嘴雾化流场进行仿真分析,比较在不同中心雾化孔直径与不同扇面孔进气压力下的雾化流场云图,得到不同空气喷嘴参数与雾化流场变化的一般规律,为今后空气喷嘴的结构改进研究提供一定的参考。Aiming at the influence of air nozzle parameters on atomization flow field, according to the structure of the existing domain model, the fluid atomization of air nozzle was established by using SolidWorks software. Through computational fluid dy- namics science （CFD） simulation software Fluent, adopting standard k-ε turbulence model settings and using the method for partitioning unstructured tetrahedral mesh by Ansys Icem software, and the atomization flow field of air nozzle was analyzed. Compared the atomization flow field with different center hole diameter and different fan hole pressure, the general pattern could be gained between the structure parameters of air nozzle and the atomization flow field, which can provide a certain reference for optimizing the air nozzle structure.

关 键 词：空气喷嘴 中心雾化孔 扇面孔 数值模拟 FLUENT 

分 类 号：TH138[机械工程—机械制造及自动化]