垂直上升管内有水平柱体时气液两相局部流型转变的研究

CIESC Journal

• TRANSPORT PHENOMENA & FLUID MECHANICS • 上一篇下一篇

垂直上升管内有水平柱体时气液两相局部流型转变的研究

胡志华^a; 杨燕华^a; 刘磊^b; 周芳德^b

^a School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
^b State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiao Tong Univeristy, Xi’an 710049, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-08-28 发布日期:2006-08-28
通讯作者: 胡志华

Local Flow Regime Transition Criteria of Gas-Liquid Two-phase Flow in Vertical Upward Tube with a Horizontal Rod

HUZhihua^a; YANGYanhua^a; LIULei^b; ZHOUFangde^b

^a School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
^b State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiao Tong Univeristy, Xi’an 710049, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-08-28 Published:2006-08-28
Contact: HU Zhihua

摘要/Abstract

摘要： The upward multiphase cross flow and heat transfer in the vertical tube may occur in oil production and chemical facilities. In this study, the local flow patterns of an upward gas-water two phase cross flow in a vertical tube with a horizontal rod have been investigated with an optical probe and the digital high speed video system. The local flow patterns are defined as the bubble, slug, churn and annular flow patterns. Optical probe signals are analyzed in terms of probability density function, and it is proved that the local flow patterns can be recognized by this method. The transition mechanisms between the different flow patterns have been analyzed and the corresponding transitional models are proposed. Finally, local flow pattern maps of the upward gas-water two-phase flow in the vertical tube with a horizontal rod are constructed.

关键词: gas-liquid;two-phase cross flow;local flow pattern;transition

Abstract: The upward multiphase cross flow and heat transfer in the vertical tube may occur in oil production and chemical facilities. In this study, the local flow patterns of an upward gas-water two phase cross flow in a vertical tube with a horizontal rod have been investigated with an optical probe and the digital high speed video system. The local flow patterns are defined as the bubble, slug, churn and annular flow patterns. Optical probe signals are analyzed in terms of probability density function, and it is proved that the local flow patterns can be recognized by this method. The transition mechanisms between the different flow patterns have been analyzed and the corresponding transitional models are proposed. Finally, local flow pattern maps of the upward gas-water two-phase flow in the vertical tube with a horizontal rod are constructed.

Key words: gas-liquid, two-phase cross flow, local flow pattern, transition

胡志华, 杨燕华, 刘磊, 周芳德. 垂直上升管内有水平柱体时气液两相局部流型转变的研究[J]. CIESC Journal.

HUZhihua, YANGYanhua, LIULei, ZHOUFangde. Local Flow Regime Transition Criteria of Gas-Liquid Two-phase Flow in Vertical Upward Tube with a Horizontal Rod[J]. .

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垂直上升管内有水平柱体时气液两相局部流型转变的研究

Local Flow Regime Transition Criteria of Gas-Liquid Two-phase Flow in Vertical Upward Tube with a Horizontal Rod

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