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Hydro dynamic modeling of stratified smooth two-phase turbulent flow with curved interface through circular pipe

机译：圆管弯曲界面分层光滑两相湍流的水动力模型

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摘要

This study is motivated by the need to develop a model for numerical calculations of fully developed, stratified smooth gas-liquid pipe flow. A configuration of a curved interface is considered. The curved gas-liquid interface is modeled by invoking the principle of minimal total system energy (sum of potential and surface energies). The two-dimensional, steady-state axial momentum equation is solved together with a low Reynolds k-ε turbulence model for a variable interface curvature. The continuity of the shear stress and the velocity across the interface are enforced. The computations are performed in the bipolar coordinate system for convenient describing the curved interface and mapping of the physical domain. The numerical method compares well with experimental data of pressure gradient, liquid holdup, vertical and horizontal profile of the longitudinal velocity. In addition, the result indicates that the interfacial configuration effects on the liquid holdup and pressure gradient are significant.
机译：这项研究的动机是需要开发一个模型，用于对完全展开的分层的气-液光滑管道流量进行数值计算。考虑弯曲界面的配置。通过调用最小系统总能量（势能和表面能之和）的原理对弯曲的气液界面进行建模。求解二维稳态轴向动量方程，并针对可变的界面曲率求解低雷诺k-ε湍流模型。剪应力的连续性和界面上的速度都得到了加强。在双极坐标系中执行计算以便于描述弯曲界面和物理域的映射。数值方法与压力梯度，液体滞留率，纵向速度的垂直和水平剖面的实验数据进行了比较。另外，结果表明界面构型对液体滞留率和压力梯度的影响是显着的。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2015年第10期|1034-1043|共10页
  • 作者

    Jimiao Duan; Huishu Liu; Ning Wang; Jing Gong; Guangwei Jiao;

  • 作者单位

    Department of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401311, China,National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, China;

    Department of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401311, China;

    Military Transportation University, Tianjin 300161, China;

    National Engineering Laboratory for Pipeline Safety, China University of Petroleum, Beijing 102249, China;

    Department of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401311, China;

  • 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
  • 中图分类
  • 关键词

    Two-phase; Computational simulation; Turbulence; Stratified flow; Curved interface;

    机译：两相计算仿真;湍流分层流;弯曲的界面;

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