Development of a dimensionless flooding correlation based on experimental study on air-water countercurrent flow limitation in a vertical tube

被引：2
|
作者：
Wan, Jie [1 ,2 ]
Sun, Wan [1 ,2 ]
Deng, Jian [3 ]
Zhu, Longxiang [1 ,2 ]
Ma, Zaiyong [1 ,2 ]
Zhang, Luteng [1 ,2 ]
Huang, Tao [3 ]
Pan, Liang-ming [1 ,2 ]
机构：
[1] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Dept Nucl Engn & Technol, Chongqing 400044, Peoples R China
[3] NPIC, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610041, Peoples R China
来源：
PROGRESS IN NUCLEAR ENERGY | 2022年 / 153卷
关键词：
Flooding; Interfacial wave; Liquid volume fraction; Interfacial friction factor; Mechanistic model; FRICTIONAL PRESSURE-DROP; 2-PHASE FLOW; LIQUID ENTRAINMENT; SHEAR-STRESS; FILM; LINE; DIAMETER; ADS-4;
D O I：
10.1016/j.pnucene.2022.104408
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The flooding phenomenon has an important influence on the safety of equipment, especially the nuclear power plant. A new semi-empirical correlation for flooding was proposed based on the experimental investigation of the physical characteristics of the flooding in our previous work. The model was derived from the momentum equations in the annular flow model. The liquid volume fraction, the wall and interfacial friction have been taken into account. The interfacial friction factor is emphatically discussed in this study since the interfacial friction has a significant influence on flooding. A modified model of interfacial friction factor was presented containing the Bond number since the Bond number can remove the influence of the geometry. The predicting error was basically within 20% compared with the existing experimental data obtained in different geometries and sizes.
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页数：8
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