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Experimental and Numerical Investigation of Stratified Gas-Liquid Flow in Downward-Inclined Pipes

机译:下斜管内气液分层流动的实验与数值研究

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摘要

This paper reports an experimental and numerical investigation of stratified gas-liquid two-phase flow in downward-inclined circular pipes. Reynolds averaged Navier-Stokes equations with the κ-ω turbulence model were solved by using the least-square finite-element method to simulate the stratified gas-liquid flow. Experiments were carried out in an air-water two-phase flow loop with a test section of 7.8-m-long circular pipe with 1 inch inner diameter for 3 downward-inclined angles, -2.5°, -5.0°, and -10.0°. The height of the liquid layer was measured by using a pulse-echo ultrasonic technique with a single fast transducer and a visualization technique with a high-speed digital camera. Numerical results for the liquid height and hold-up as a function of inclination angles were compared favorably with experimental results of the present study and literature data.
机译:本文报道了向下倾斜的圆形管道中气液两相分层流的实验和数值研究。采用最小二乘有限元法模拟气液分层流,求解了具有κ-ω湍流模型的雷诺平均Navier-Stokes方程。实验是在空气-水两相流回路中进行的,测试段为7.8米长的圆形管,内径为1英寸,向下倾斜3个角度,分别为-2.5°,-5.0°和-10.0° 。通过使用具有单个快速换能器的脉冲回波超声技术和具有高速数码相机的可视化技术来测量液层的高度。将液体高度和滞留量作为倾角函数的数值结果与本研究的实验结果和文献数据进行了比较。

著录项

  • 来源
    《Heat Transfer Engineering》 |2015年第11期|943-951|共9页
  • 作者单位

    Nuclear Engineering Institute, Brazilian Nuclear Energy Commission (CNEN), Rio de Janeiro, Brazil;

    NucIear Engineering Program, COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil;

    Nuclear Engineering Institute, Brazilian Nuclear Energy Commission (CNEN), Rio de Janeiro, Brazil;

    Nuclear Engineering Program, COPPE, Universidade Federal do Rio de Janeiro, 21941-914, Rio de Janeiro, Brazil;

  • 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
  • 中图分类
  • 关键词

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