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首页> 外文期刊>Heat Transfer Engineering >An Empirical Model to Predict the Transition Between Stratified and Nonstratified Gas-Liquid Two-Phase Flow in Horizontal and Downward Inclined Pipes
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An Empirical Model to Predict the Transition Between Stratified and Nonstratified Gas-Liquid Two-Phase Flow in Horizontal and Downward Inclined Pipes

机译：预测水平和向下倾斜管道中分层和非分层气液两相流之间过渡的经验模型

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摘要

The specific objective of this work is to develop an empirical model to predict the existence of stratified flow in horizontal and downward inclined gas-liquid two-phase flow. The proposed model is in nondimensional form and attempts to emulate the qualitative trend of the Taitel and Dukler mechanistic model. The key advantage of the proposed method is that it is explicit in nature and, unlike Taitel and Dukler, it does not require use of a graphical or iterative solution. The empirical parameters used in the proposed model account for the effect of pipe diameter, pipe orientation, and the liquid density on the transition line between stratified and nonstratified flow. The accuracy of the proposed model is verified against the flow visualization data collected from more than 16 data sources consisting of 8 fluid combinations, pipe diameter in a range of 8.9 to 300 mm, liquid density in a range of 780 to 1420 kg/m~3, and all downward pipe inclinations including horizontal.
机译：这项工作的具体目的是建立一个经验模型来预测水平和向下倾斜的气液两相流中分层流的存在。所提出的模型是无量纲的，并试图模仿Taitel和Dukler力学模型的定性趋势。所提出的方法的主要优点是它本质上是明确的，并且与Taitel和Dukler不同，它不需要使用图形或迭代解决方案。在建议的模型中使用的经验参数考虑了管道直径，管道方向和液体密度对分层流和非分层流之间的过渡线的影响。对照从16种数据源（包括8种流体组合），管道直径在8.9至300 mm范围内，液体密度在780至1420 kg / m〜范围内收集的流动可视化数据验证了所提出模型的准确性。 3，所有向下的管道倾斜包括水平。

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  • 来源
    《Heat Transfer Engineering》 |2015年第18期|1485-1494|共10页
  • 作者

    SWANAND M. BHAGWAT; AFSHIN J. GHAJAR;

  • 作者单位

    School of Mechanical and Aerospace Engineering, Oklahoma State University, Oklahoma, Stillwater, USA;

    School of Mechanical and Aerospace Engineering Oklahoma State University, Stillwater, OK 74078, USA;

  • 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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