（a. School of Manufacturing Science and Engineering； b. Key Laboratory of Testing Technology for Manufacturing Process Ministry of Education， Southwest University of Science and Technology， Mianyang 621010， China）
Abstract：For the problem of the atomization effect of nozzle structural parameters, a numerical calculation model of centrifugal nozzle was established based on the fluid mechanics theory. The orthogonal test of the nozzle parameters were carried out by the Fluent. A more reasonable structure parameter was obtained and then the atomization field of the nozzle was studied. The results show that the swirling chamber radius is the most remarkable influence on the nozzle flow field with the nozzle of same exit radius. It has formed the smaller average diameter of droplets with the optimized nozzle. The diameter of particles are mainly distributed in between 25~35μm. The cloud droplet speed decreases rapidly with the axis direction, and then it keeps in around 10 m/s.
Keywords: centrifugal nozzle; droplet diameter; parameter optimization; orthogonal experiment; atomization
文章编号：1008-5548（2016）06-0007-05
DOI：10.13732/j.issn.1008-5548.2016.06.002
收稿日期：2016-04-04，修回日期：2016-10-26，在线出版时间：2016-12-06。
基金项目：国家科技支撑计划项目，编号：2014BAF12B05。第一作者简介：周佳（1990—），男，硕士研究生，研究方向为计算流体力学、机电系统设计。E-mail：zjnhsy278@163.com。
通信作者简介：朱目成（1964—），男，博士，教授，硕士生导师，研究方向为传感器技术、信号处理、机电系统设计。E-mail：441023861@qq.com。
