摘要
对旋叶式汽水分离器叶片区域液滴受力进行合理简化,得到旋叶式分离器叶片区域液滴动力学方程。利用数值模拟对比不同液滴直径、空气入口流速和叶片升角时,液滴通过叶片区、液滴撞击叶片和液滴撞击筒壁份额的变化。当液滴尺寸增大、空气入口流速增大或叶片升角减小时,液滴撞击叶片份额呈现增加的趋势,叶片升角对结果的影响不大。液滴曳力与惯性力的比值在时间上的积累越大,液滴越不容易撞击到叶片上。
According to reasonable simplifying forces exerted on a droplet, the dynamics equation of a droplet at the swirler area in Swirler Pattern Separator is given. Numerical simulation, which is verified by the conclusions from the experiment, is used to discuss the variable percentage of droplets passing throw the swirler area, droplets impacting the swirlers and the barrel wall in accordance with droplets average diameter, air inlet-velocity and swirler angle. The percentage of droplets impacting swirlers appears to increase when droplets average diameter or air inlet-velocity or swirler angle increases. In addition, swirler angle has little effect on the percentage. The more the rate of drag force to inertial force accumulating in droplets moving time, the more difficult for droplets to impact swirlers.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2015年第6期51-55,共5页
Nuclear Power Engineering
关键词
汽水分离器
叶片区
液滴
动力学
影响因素
Swirler Pattem Separator, Swirler area, Droplet, Dynamics, Influencing factor
