首页|多桨机械搅拌固液耦合混沌强化数值模拟仿真研究

多桨机械搅拌固液耦合混沌强化数值模拟仿真研究

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通过在斜桨涡轮叶片上开孔,得到了改型叶轮.应用数值模拟计算对改型叶轮进行了过程可视化计算,并对流场结构、流体速度分布、固体悬浮度、局部固体分布、尾涡和湍流动能(TKE)进行了详细研究,结果表明:60°直叶桨叶端产生的径向流强,槽内速度分布较为充分,能够实现较好的物料混合效果,针对颗粒的离底悬浮方面,在不同倾角的斜叶桨中,60°叶轮在固体悬浮中表现更好,有最好的搅拌效果.
Numerical Simulation Study on Chaos Enhancement of Solid-liquid Coupling in Multi Blade Mechanical Stirring
This article obtained a modified impeller by drilling holes on the inclined propeller turbine blades.The process visualization calcula-tion of the modified impeller was carried out through numerical simulation,and the flow field structure,fluid velocity distribution,solid suspen-sion degree,local solid distribution,wake vortex,and turbulent kinetic energy(TKE)were studied in detail.The results showed that the radial flow generated by the 60 ° straight blade end was strong,the velocity distribution in the groove was relatively sufficient,and good material mix-ing effect could be achieved.In terms of particle bottom suspension,the 60 ° impeller performed better in solid suspension and had the best stir-ring effect among inclined blades with different inclinations.

Mixing ProcessSolid-liquid Mixing TankDEM-VOF SimulationBlade Inclination Angle

韦乃团、王仕博、李建福、王天杰、李宗伦、林琳

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昆明理工大学 冶金与能源工程学院,云南 昆明 650000

鑫联环保科技有限公司,云南 红河 661400

昆明理工大学 环境科学与工程学院,云南 昆明 650000

搅拌 固液搅拌罐 DEM-VOF仿真 桨叶倾角

2024

云南化工
云南省化工研究院 云天化集团有限责任公司 云南煤化工集团有限公司 云南省化学化工学会

云南化工

影响因子:0.272
ISSN:1004-275X
年,卷(期):2024.51(12)