摘要
采用计算流体动力学(CFD)软件FLUENT、利用多重参考系法(MRF)对曲面型叶片轴流式搅拌器的流场进行数值模拟。首先分析研究了不同扭角下曲面型搅拌器槽内流场特性和搅拌功率,表明:当扭角为10°时,槽内湍流强度强的区域更大,且搅拌功率最高;其次还分析了不同桨叶数的曲面型轴流式搅拌器的时均速度分布和搅拌功率,可知槽内时均速度、搅拌功率随着桨叶数的增加而增加。
This paper applies computational fluid dynamics （CFD） software FLUENT and multiple reference frame （MRF） to nu- merical stimulatian of the flow field of curved blade axial-flow stirrer. Firstly, it analyzes the flow field characteristics and the mixing power in the curved stirrer tank under different torsion angles. When the torsion angle is 10°, groove turbulence intensity is at larger area and the mixing power is the highest. In addition, it also analyzes the time-averaged velocity distribution and the mixing power of curved axial-flow stirrer under different blade numbers, which shows that the time-averaged velocity and the mixing power in the tank increase with the blade number increase.
出处
《机械制造与自动化》
2013年第4期132-135,共4页
Machine Building & Automation
关键词
轴流式搅拌器
扭角
桨叶数
数值模拟
搅拌功率
axial-flow stirrer
torsion angle
blade number
numerical simulation mixing power
