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首页> 外文期刊>Journal of Heat Transfer >Visual Criteria for Measuring Two-phase Flow Rate in Venturi with Flow Homogenizer
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Visual Criteria for Measuring Two-phase Flow Rate in Venturi with Flow Homogenizer

机译:使用均质器测量文丘里管中两相流速的视觉标准

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摘要

A simple use of Venturi might be used to measure two-phase flow rate within relatively low GVF(gas volume fraction). Upstream flow entering Venturi can be improved with installed flow homogenizer which is easily fabricated by 3-dimensional printer with multiple holes. Simultaneous measurement between high-speed flow visualization and dynamic differential pressure measurement was made to find visual criteria for two-phase flow rate measurement with different GVF ranged from 0% to 30%. It was observed that the two-phase flow rate can be reliably measured up to 15% of GVF using flow homogenizer. FFT(Fast-Fourier Transform) results proved that the long flow homogenizers (type 2 and 4) showed a lower amplitude of differential pressure (△p) than the short flow homogenizers (type 1 and 3) respectively. So the optimized flow homogenizer can be useful to measure two-phase flow rate at low GVF. [This work was supported by the Korea Institute for Advancement of Technology (KIAT) grant funded by the Ministry of Trade, Industry & Energy, Korea (grant No. N00970001).]
机译:可以简单地使用文丘里管来测量相对较低的GVF(气体体积分数)内的两相流速。可以通过安装的流量均质器来改善进入文丘里管的上游流量,该流量均质器可以通过带有多个孔的3维打印机轻松制造。在高速流量可视化和动态压差测量之间进行同时测量,以找到可视化标准,以用于不同GVF范围为0%至30%的两相流量测量。观察到使用流均化器可以可靠地测量高达GVF的15%的两相流速。 FFT(Fast-Fourier Transform)结果证明,长流均质器(类型2和4)分别比短流均质器(类型1和3)显示出更低的压差幅度(△p)。因此,优化的均质器可用于在低GVF下测量两相流速。 [这项工作得到了由韩国贸易,工业和能源部资助的韩国技术进步研究院(KIAT)的资助(批准号N00970001)。]

著录项

  • 来源
    《Journal of Heat Transfer》 |2015年第8期|080911.1-080911.1|共1页
  • 作者单位

    Department of Extreme Thermal Systems, Korea Institute of Machinery and Materials, Daejon, 305-343, Korea;

    Department of Extreme Thermal Systems, Korea Institute of Machinery and Materials, Daejon, 305-343, Korea;

    Department of Extreme Thermal Systems, Korea Institute of Machinery and Materials, Daejon, 305-343, Korea;

    Department of Mechanical Engineering, Chosun University, Kwangju, 501-759, Korea;

  • 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
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