摘要
为了解斜三通管内流动情况与自身构造之间的关系,应用Fluent软件分别对管间夹角θ=30°、45°、60°的斜三通进行数值模拟。通过比较各结构下管内流体的流动效果发现,当θ较小时,对两股流体混合情况影响较小,两股流体在交汇处的速度变化不大,后续混合段管内流体的速度有明显的分层。同时在靠近支管底部管壁上方,产生明显的低压区。随着θ的不断增大,低压区面积也随之增大,压力最低点逐渐朝出口方向后移。研究结果表明,斜三通的设计较为合理。
In order to understand the relationship between the oblique tee and its own structure,the Fluent software was used to numerically simulate the oblique tee with the angle between the tubesθ=30°,45°,and 60°.The simulation is carried out by comparing the fluid in the lower pipe of each structure,the effect of the flow is that whenθis small,the effect on the mixing of the two fluids is small.The speed of the two fluids at the intersection does not change much,and the speed of the fluid in the mixing section tube has a very obvious stratification.At the same time,an obvious low-pressure area is generated near the bottom of the branch pipe and above the pipe wall.With the continuous increase ofθ,the area of the low-pressure zone also increases,and the lowest point of pressure gradually moves back toward the outlet.The research results show that the design of the oblique tee is more reasonable.
出处
《节能》
2021年第12期47-49,共3页
Energy Conservation
关键词
斜三通
数值模拟
入流角度
oblique tee
numerical simulation
inflow angle
