Chuandong LIU, Wei XU, Hui HE, Xiaojing LIU. Effect of air gap on the flow and heat transfer behavior in rectangular channel of fuel plate during bubbling conditions[J]. NUCLEAR TECHNIQUES, 2024, 47(9): 090606
- NUCLEAR TECHNIQUES
- Vol. 47, Issue 9, 090606 (2024)
Fig. 1. Overall schematic diagram of the model
Fig. 2. Schematic diagram of partial fuel plate bubbling
Fig. 3. Diagram of flow-solid interface Y+
Fig. 4. Comparison of temperature on the centerline of the fuel plate under different mesh numbers
Fig. 5. Temperature distribution contours of fuel plates under different bubbling conditions(a) No bubbling, (b) Solid bubbling, (c) Gas bubbling
Fig. 6. Temperature change curves of fuel plate along the flow direction under gas bubbling (a) and solid bubbling (b)
Fig. 7. Variation curves of longitudinal temperature of fuel plate under gas bubbling (a) and solid bubbling (b)
Fig. 8. Heat flux distribution contours of fuel plates under different bubbling conditions(a) No bubbling, (b) Solid bubbling, (c) Gas bubbling
Fig. 9. Heat flux density variation curves of fuel plate in the bubble center under gas bubbling (a) and solid bubbling (b)
Fig. 10. Comparison diagram of heat flux proportion on both sides of the fuel plate
Fig. 11. Deformation map of bubbling fuel plate
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Table 1. Model geometric parameters
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Table 2. Comparison between simulation and experimental results
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Table 3. Heat transfer coefficients at the bubbling center of the fuel plate under three bubble conditions
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