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作者:

Liu, Xingwei (Liu, Xingwei.) | Liu, Zhongliang (Liu, Zhongliang.) (学者:刘中良)

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EI Scopus SCIE

摘要:

Although many efforts have been made to disclose the energy separation phenomenon based on theoretical numerical and experimental analysis in vortex tubes, it is still difficult to provide systematical information for designing vortex tubes due to the complexity of the physical process and the shortage of fully generally-applicable theory and methods. The purpose of current study was to search an effective method to predict the energy separation and flow behavior within a vortex tube. A three-dimensional computational fluid dynamic model together with the experimentally validated turbulence model is established and an experimental measurement is carried out using an optimal structure of vortex tube so as to validate the computational model. The flow characteristics including the total temperature and tangential velocity were obtained. The effects of cold fluid outlet diameter on the flow and temperature separation of a counter-flow vortex tube were investigated comprehensively. The streamlines with different cold fluid outlet diameters were presented and analyzed. A possible explanation for the cold fluid outlet diameter influences on the temperature difference between the cold fluid outlet and the hot fluid outlet were also given. (C) 2014 Elsevier Ltd. All rights reserved.

关键词:

Experimental validation Vortex tube Flow parameters Streamline contrast Numerical investigation

作者机构:

  • [ 1 ] [Liu, Xingwei]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Zhongliang]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 刘中良

    [Liu, Zhongliang]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

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来源 :

APPLIED THERMAL ENGINEERING

ISSN: 1359-4311

年份: 2014

期: 1-2

卷: 67

页码: 494-506

6 . 4 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:176

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 50

SCOPUS被引频次: 64

ESI高被引论文在榜: 0 展开所有

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