基于Fluent的桨叶搅拌对流场分布影响的仿真分析

鹿宪珂; 张玉宝; 陈海大; 王珩; 马义明

doi:10.15980/j.tzzz.2022.10.008

研究·计算机应用 | 浏览量 : 0 下载量: 78 CSCD: 0

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基于Fluent的桨叶搅拌对流场分布影响的仿真分析
Fluent Simulation of Influence of Impeller Stirring on Flow Field Distribution
2022年42卷第10期页码：1231-1235
纸质出版日期： 2022 ，
DOI： 10.15980/j.tzzz.2022.10.008

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鹿宪珂, 张玉宝, 陈海大, 等. 基于Fluent的桨叶搅拌对流场分布影响的仿真分析[J]. 特种铸造及有色合金, 2022,42(10):1231-1235.

Lu Xianke, Zhang Yubao, Chen Haida, et al. Fluent Simulation of Influence of Impeller Stirring on Flow Field Distribution[J]. Special Casting & Nonferrous Alloys, 2022,42(10):1231-1235.
鹿宪珂, 张玉宝, 陈海大, 等. 基于Fluent的桨叶搅拌对流场分布影响的仿真分析[J]. 特种铸造及有色合金, 2022,42(10):1231-1235. DOI： 10.15980/j.tzzz.2022.10.008.

Lu Xianke, Zhang Yubao, Chen Haida, et al. Fluent Simulation of Influence of Impeller Stirring on Flow Field Distribution[J]. Special Casting & Nonferrous Alloys, 2022,42(10):1231-1235. DOI： 10.15980/j.tzzz.2022.10.008.

摘要

基于ANSYS Fluent软件对Zn-Al合金熔炼过程中的混合过程进行了仿真分析，研究了单、双层桨叶对搅拌效果的影响。结果表明，单、双层桨叶对流体在径向和轴向的流动方向影响较小，而对流动速度影响较大，靠近轴心位置的径向速度差异最大超过1倍。在相同转速和转向下，双层桨叶混合效率高，流场分布均匀且对熔池上表面破坏小。单层桨叶搅拌效率低，对熔池上表面破坏严重，导致氧化剧烈。

Abstract

The mixing process during the smelting process of zinc-aluminum alloy was simulated and analyzed by ANSYS fluent software. The influence of single-layer and double-layer impeller on the stirring effects was investigated. The results indicate that both impellers have little influence on the flow direction in radial and axial direction

which have great influence on the flow velocity

where the difference of radial velocity near the axis is more than onetimes. Under the same rotation speed and steering

the double-layer impeller has high mixing efficiency with uniform flow field distribution and poor damage to the upper surface of the molten pool. The single-layer impeller has low stirring efficiency

which causes serious damage to the upper surface of molten pool

resulting in severe oxidation.