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Influence of Inlet Premixing on Two-Phase Flow Patterns in a Horizontal Minichannel

机译：进气预混对水平小通道内两相流型的影响

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摘要

Experimental investigations are reported for air-water two-phase flow through a 2.1-mm horizontal circular minichannel. Influence of inlet premixing on two-phase flow is established by constructing various T-junction geometries with cross-flow arrangement of air and water. Six different flow patterns are observed and flow pattern maps are developed. The developed flow pattern maps are then compared for different inlet designs. It is observed that the degree of premixing of the two fluids has significant effect on flow patterns, particularly for surface-tension-dominated regime. The results obtained from these experiments can provide guidelines for selection, design, and control of wide-ranging microfluidic applications. The flow pattern map established in the present study may facilitate prediction of flow regimes in pulsating heat pipes based on the inlet flow rates of the gas and liquid.
机译：据报道，对通过2.1毫米水平圆形微型通道的气水两相流进行了实验研究。进气口预混对两相流的影响是通过构造具有空气和水的错流布置的各种T型结几何来建立的。观察到六个不同的流型，并绘制了流型图。然后针对不同的进气口设计比较所开发的流型图。观察到，两种流体的预混合程度对流动模式有显着影响，特别是对于以表面张力为主的状态。从这些实验中获得的结果可以为广泛的微流体应用的选择，设计和控制提供指导。在本研究中建立的流型图可能有助于基于气体和液体的入口流速来预测脉动热管中的流态。

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  • 来源
    《Heat Transfer Engineering》 |2015年第8期|564-573|共10页
  • 作者

    HEMANT B. MEHTA; JYOTIRMAY BANERJEE;

  • 作者单位

    Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Gujarat, India;

    Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat-7, Gujarat, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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