小管径涡流管三维数值模拟及热力学过程分析

李龙; 何望云; 李言; 杨明顺; 袁启龙

doi:10.13433/j.cnki.1003-8728.2016.0514

小管径涡流管三维数值模拟及热力学过程分析

doi: 10.13433/j.cnki.1003-8728.2016.0514

1.
西安理工大学机械与精密仪器工程学院, 西安 710048

基金项目:

国家自然科学基金项目(50975229)、高等学校博士学科点专项科研基金项目(20116118110005)、陕西省教育厅科学研究计划项目(12JK0688)及陕西省教育厅重点实验室科学研究计划项目(12JS072)资助

详细信息

作者简介:
李龙(1989-),博士研究生,研究方向为先进制造技术,lilong678@qq.com

通讯作者:
李言(联系人),教授,博士,博士生导师,jyxy-ly@xaut.edu.cn

计量
- 文章访问数: 232
- HTML全文浏览量: 39
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2014-05-19
- 刊出日期: 2016-05-05

3D Numerical Simulation and Analysis of Thermodynamic Process of Small-diameter Vortex Tube

1.
School of Machinery and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 为了探究小管径涡流管的工作机制,建立了其内流场的三维数值计算模型,并采用Standard k-ε湍流模型进行了数值模拟。根据数值计算所得结果,结合工质的流动特点,将其内部流动过程分为三个特征区域,分析各区域所得相关物理量的分布情况,给出了小管径涡流管工作过程中工质的热力学变化过程,同时通过对比实验和模拟所得的出入口数据,验证了所用数值模拟方法的可行性。以此对小管径涡流管工质及温度的分离现象做出一定解释。
- 涡流管 /
- 数值模拟 /
- 热力学过程
Abstract: To explore the work mechanisms of a small-diameter vortex tube, this study establishes the three-dimensional numerical simulation model of its internal flow field and carries out its numerical simulation with the standard k-ε turbulence model. According to the numerical simulation results, the internal flow field is divided into three characteristic regions that combine the flow characteristics of the work medium. The analysis of the distribution of each parameter produces the thermodynamic process of the work medium in the small-diameter vortex tube. The comparison of the simulation results with the experimental data on the inlet and outlet of the small-diameter vortex tube proves that our simulation method is feasible. Therefore it helps us to explain the work medium and temperature separation in the small-diameter vortex tube and optimize the small-diameter vortex tube.
- internal flow field /
- numerical simulation /
- small-diameter vortex tube

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参考文献(13)

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