Offspring of the nuclear reactor industry and gas-oil production, multiphase fluids handling technology appears to have matured into an entirely new field of inquiry, most notably following broad acceptance of the drift flux and flow pattern concepts and their widespread integration into engineering calculations.The drift flux model (DFM), first suggested by Nicklin in 1962 and, soon after, adapted and developed by Professor Zuber's research group at General Electric, enables calculation of "locally averaged" phase velocity. Further progress made in selection of the flow patterns, calculated for each section of the pipe, provided the key to properly assessing the terminal velocity of the discrete phase and the local phase distributions.The flow pattern concept was first introduced by Canadian Charles Govier to describe oil-water laboratory experiments, then by Hewitt-Roberts and Baker in 1954. A decade later, the team of Dukler-Taitel-Barnea developed the qualitative flow pattern concept into a quantitative roadmap procedure leading to rational calculations of the local (cross-section averaged) gas-liquid flow geometry, or flow pattern. The homogeneous gas-liquid flow, presuming the equality of gas and liquid velocities, a simplification broadly accepted during the early days of two-phase flow engineering, came to be regarded, due to Hinze's work (Shell, 1955), as an identifiable region in the local flow map, reflecting turbulent and high-shear breakup of the discrete phase.
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机译：核反应堆工业和天然气生产的后代，多相流体处理技术似乎已经成熟成一个完全新的调查领域，最重要的是遵循漂移通量和流量模式概念的广泛接受以及他们广泛的整合到工程计算中。该漂移助焊剂模型（DFM），首先由镍建议于1962年，并于一般电气教授Zuber的研究组调整和开发后，能够计算“局部平均”的阶段速度。选择用于针对管道的每个部分计算的流动模式的进一步进展，提供了适当地评估离散阶段和局部相分布的终端速度的键。流动模式概念首先由加拿大查尔斯州介绍来描述油水实验室实验，然后由Hewitt-Roberts and Baker于1954年。十年后，Dukler-Taitel-Barnea团队将定性流动模式概念发展成定量路线图程序，导致当地的合理计算（横截面）平均）气体流动几何或流动模式。由于Hinze的工作（Shell，1955）作为可识别区域，均匀的气液流量，造成气体和液体速度的平等，在两相流动工程的早期广泛接受的简化，这是众所周知的在局部流程图中，反映了离散相的湍流和高剪切分析。
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