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椭圆螺旋管道混合器混合效果模拟研究

马洪彬 郑勐 胡艳凯

马洪彬, 郑勐, 胡艳凯. 椭圆螺旋管道混合器混合效果模拟研究[J]. 机械科学与技术, 2017, 36(5): 755-760. doi: 10.13433/j.cnki.1003-8728.2017.0516
引用本文: 马洪彬, 郑勐, 胡艳凯. 椭圆螺旋管道混合器混合效果模拟研究[J]. 机械科学与技术, 2017, 36(5): 755-760. doi: 10.13433/j.cnki.1003-8728.2017.0516
Ma Hongbin, Zheng Meng, Hu Yankai. Numerical Simulation for Mixing Uniformity of Spiral Oval Duct Mixer[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(5): 755-760. doi: 10.13433/j.cnki.1003-8728.2017.0516
Citation: Ma Hongbin, Zheng Meng, Hu Yankai. Numerical Simulation for Mixing Uniformity of Spiral Oval Duct Mixer[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(5): 755-760. doi: 10.13433/j.cnki.1003-8728.2017.0516

椭圆螺旋管道混合器混合效果模拟研究

doi: 10.13433/j.cnki.1003-8728.2017.0516
详细信息
    作者简介:

    马洪彬(1990-),硕士研究生,研究方向为机械工程与CAE技术,fangjinzheng2046@163.com

    通讯作者:

    郑勐(联系人),副教授,硕士,zhmeng@xaut.edu.cn

Numerical Simulation for Mixing Uniformity of Spiral Oval Duct Mixer

  • 摘要: 应用CFD技术研究了椭圆螺旋流道内两相液体在充分发展条件下的混合效果。基于FLUENT软件,对混合性能进行了数值模拟研究,讨论了椭圆螺旋管道混合器的截面形状、曲率半径、螺距3种因素对该混合器混合效果的影响。模拟所得液相的流动状态与实验结果具有很好的一致性。提取相应截面液体的混合不均匀系数,分析结果表明:截面形状的变化会给螺旋管道混合器造成不同程度的狭小区域,对混合均匀性影响较大;增加螺距会对混合产生消极的影响;当曲径为某一特征值时,混合效果可达到最好状态;同时,通过仿真分析得出,液体流速的改变对混合器中液体的混合效果影响不大;通过对流场内部剪切速率、流线、质点速度场的分析,讨论了粒子无序运动是螺旋混合器内液体充分混合的关键因素。
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出版历程
  • 收稿日期:  2016-04-07
  • 刊出日期:  2017-05-05

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