Abstract
An experimental and theoretical research has been performed for liquid entrainment at T-junction consisting of hot leg and ADS-4 pipe in view of the insufficiency of existing studies. Based on visualization research, three kinds of entrainment phenomena including intermittent entrainment, stratified entrainment and annular entrainment are clearly observed, and the feature of each flow regime is summarized and recorded by high-speed camera. Also, the flow pattern map is plotted from the experimental data to indicate the transition conditions of different flow regimes. For the purpose of modeling and expanding previous research, the influence of entrance length on entrainment is discussed on the basis of two different test sections. The effect of liquid flow on onset entrainment and stable entrainment is analyzed, and experiment results show that the effect of liquid flow on entrainment through ADS-4 pipe can be neglected. Also, onset entrainment model and branch quality model are established and accord with experimental data well.
| Original language | English |
|---|---|
| Pages (from-to) | 177-187 |
| Number of pages | 11 |
| Journal | Experimental Thermal and Fluid Science |
| Volume | 57 |
| DOIs | |
| State | Published - Sep 2014 |
Keywords
- ADS-4
- Entrainment model
- Liquid entrainment
- Visualization