• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Novel transonic nozzle for Ranque-Hilsch vortex tube
【24h】

Novel transonic nozzle for Ranque-Hilsch vortex tube

机译：用于Ranque-Hilsch涡管的新型跨音速喷嘴

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The process of the vortex flow formation in the Ranque-Hilsch vortex tube is studied. Starting from deficiencies of the existing vortex tubes, a novel type for the transonic nozzle is suggested and designed. The proposed nozzle is different from the existing classical ones by the presence of additional supersonic section placed after the blades. This section creates controlled conditions for acceleration of the vortex flow to supersonic speed. Analysis of the gas flow in the transonic nozzle using 3D RANS simulations showed that slightly improper selection of nozzle dimensions may lead to destabilization of the vortex flow and deterioration of the vortex tube performance. Simplified semi-one-dimensional model of swirling gas flow was derived and utilized for correction of the nozzle dimensions in order to stabilize the flow. Detailed validation of this model against full 3D RANS simulations demonstrated its applicability for preliminary engineering computations. It was demonstrated that application of the novel transonic nozzle extends the region in the energy separation chamber occupied by the supersonic vortex. This results in increase of both temperature separation effect and vortex tube energy efficiency. Main advantages and disadvantages of the novel transonic nozzle are summarized in the concluding section.
机译：研究了RANQUE-HILSCH涡旋管中的涡流流动形成的过程。从现有涡管的缺陷开始，建议和设计了一种用于跨音速喷嘴的新型类型。所提出的喷嘴通过在叶片之后的额外的超音速部分存在于现有的经典。本节为加速涡流流向超声速度创造了控制条件。使用3D RAN模拟分析跨音速喷嘴中的气流显示，喷嘴尺寸的选择略微不当，可能导致涡流流量的破坏化和涡旋管性能的劣化。衍生并利用用于矫正喷嘴尺寸以稳定流动的简化半一维模型。对全3D RAN模拟的本模型的详细验证证明了其对初步工程计算的适用性。据证明，新型跨音速喷嘴的应用延伸了由超音速涡流占据的能量分离室中的区域。这导致温度分离效果和涡旋管能效率的增加。结论部分总结了新型跨音速喷嘴的主要优点和缺点。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第12期|121801.1-121801.11|共11页
  • 作者

    Anatoliy Khait; Vincenzo Bianco; Alexander Lovtsov; Alexander Noskov; Vladimir Alekhin;

  • 作者单位

    Department of Computing & Mathematics Manchester Metropolitan University Manchester Ml 5GD UK Institute of Civil Engineering and Architecture Ural Federal University 19 Mira St. Ekaterinburg 620002 Russia;

    DIME/TEC - Division of Thermal Energy and Environmental Conditioning University of Genoa Via All'Opera Pia 15/A Genoa 16145 Italy;

    Design Bureau Chkz-Yugson 4 Avtomatiki St. Ekaterinburg 620049 Russia;

    Institute of Civil Engineering and Architecture Ural Federal University 19 Mira St. Ekaterinburg 620002 Russia;

    Institute of Civil Engineering and Architecture Ural Federal University 19 Mira St. Ekaterinburg 620002 Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Vortex tube; Supersonic nozzle; Energy efficiency;

    机译：涡管;超音速喷嘴;能源效率;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号