Meiyue YAN, Liangming PAN, Zaiyong MA, Xiang LI, Qingche HE. Flow patterns visualization and triggering mechanisms of critical heat flux in narrow rectangular channels with different gap size[J]. NUCLEAR TECHNIQUES, 2023, 46(5): 050606
- NUCLEAR TECHNIQUES
- Vol. 46, Issue 5, 050606 (2023)
Fig. 1. Schematic diagram of the setup of visualization part (a) Schematic diagram, (b) Snapshot of experimental field
Fig. 2. Schematic diagram of thermocouple locations
Fig. 3. CHF trigger mechanism in the ε =5 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 4. CHF trigger mechanism in the ε =3 mm (a) Flow pattern evolution，(b) Temperature variation
Fig. 5. CHF trigger mechanism in the ε =2 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 6. CHF trigger mechanism in the ε =1 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 7. CHF changes with pressure when gap size is 3 mm and 5 mm, respectively
Fig. 8. CHF changes with pressure when the gap size is 1 mm
Fig. 9. Flow pattern when CHF occurs in a narrow rectangular channel
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Table 1. Range of experimental parameters
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