一种高粘度两相流静态混合器混合均匀度的仿真分析

郑勐; 雷鹏; 董永亨

doi:10.13433/j.cnki.1003-8728.2014.1019

一种高粘度两相流静态混合器混合均匀度的仿真分析

doi: 10.13433/j.cnki.1003-8728.2014.1019

1.
西安理工大学, 西安 710048;
2.
西安西电高压开关有限责任公司, 西安 710082

详细信息

作者简介:
郑勐(1963-)，副教授，硕士，研究方向为机电一体化产品的设计和制造，zhmeng@xaut.edu.cn

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出版历程
- 收稿日期: 2014-02-15

Simulation Analysis on the Mixing Uniformity for a Static Mixer Used for High Viscous Two-phase Fluid

1.
Xi'an University of Technology, Xi'an 710048;
2.
Xi'an XD High Voltage Switch Co．Ltd., Xi'an 710082

摘要

摘要: 在常见类型混合器的基础上设计了一种新型的高粘度两相流静态混合器。基于Fluent软件分析了预混单元对整体混合效果的影响,并分析了混合单元数量和流体入口速度对混合均匀度的影响。分析结果表明带预混单元混合器的混合效果好于不带混合单元的,还表明当混合单元数量为3时能在不同的入口速度下获得理想的混合效果。在此基础上,根据质点的速度场和流场分布状态,分析并说明了杂乱的速度和流线分布是获得良好混合效果的根本原因。同时,通过仿真分析了粘度对混合效果的影响,结果表明该混合器的混合均匀度随着液体粘度的增大而提高,还表明该混合器对中、低粘度的液体也有良好的混合效果。
- 两相流混合器 /
- 混合均匀度 /
- 预混 /
- 混合单元数目 /
- 入口速度
Abstract: Based on the common types of mixer, a new kind of static mixer used for high viscous two-phase fluidwas designed.The impact of pre-mixing unit on the overall mixing effect was analyzedby using the Fluent software, and the influence of the number of mixing units and the entrance velocity of fluid on the mixing uniformity were alsostudied.The results showed that the mixing effect of mixer with pre-mixed unit was better than that without pre-mixed unit, and it also indicted that well mixing effect can be obtained with different entrance velocity when thenumber of mixing units reached 3.On this basis, according to the distribution of flow field and velocity field ofparticles, it wa explained that the disordering distribution of the velocity and streamline was the fundamental reasonfor well mixing effect.Meanwhile, the influence of viscosity on mixing effect was analyzed by simulation, the resultsshowed that the mixing uniformity of the mixer was improved along with the increasing of the viscosity of fluid, andthis mixer also had good mixing effect for low viscosity or middle viscosity fluid.
- computer simulation /
- computer software /
- design /
- flow fields /
- mesh generation

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