Flow Pattern and Transition Prediction of Gas and Liquid Concurrent Downward Flow through an Orifice

被引：0

作者：

Qiao M. ^{[1
]}

Qiu Z. ^{[1
]}

Huang W. ^{[2
]}

Zhang Y. ^{[1
]}

机构：

[1] CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu

[2] School of Chemical Engineering, Sichuan University, Chengdu

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷

关键词：

Correlation; Flow pattern; Flow pattern map; Gas and liquid two-phase flow; Orifice plate;

D O I：

10.13832/j.jnpe.2021.S1.0021

中图分类号：

学科分类号：

摘要：

Experiments were conducted with gas and liquid (water and glycerite) concurrent downward flow through different orifice plates. The effects of gas and liquid flowrates, hole diameter, plate thickness and the kinematic viscosity of the liquid on the transition of the dispersed flow were clarified. Experimental results show that: the gas flow rate of the dispersed flow transition decreases with the increasing of liquid flow rate; with the decreasing of hole diameter, plate thickness, or the increasing of liquid kinematic viscosity, the dispersed flow is more prone to occur. Finally, based on the experimental results, a correlation was proposed to predict the onset of the dispersed flow. These flow patterns and correlation are useful for the prediction of the onsite of the dispersed flow, and can provide valuable references for the operation and optimization design of the orifice plate system with gas and liquid concurrent downward flow through orifice. Copyright ©2021 Nuclear Power Engineering. All rights reserved.

引用

页码：21 / 25

页数：4

共 15 条

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