Thermal-hydraulic CFD simulation of PWR 5 x 5 bowing fuel assembly

被引：4
|
作者：
Wang, Boxue [1 ,2 ]
Huang, Mei [1 ,2 ,3 ]
Liu, Weiyang [1 ,2 ]
Li, Yaodi [1 ,2 ]
Cheng, Yanting [1 ,2 ]
机构：
[1] North China Elect Power Univ, Sch Nucl Sci & Technol, Beijing, Peoples R China
[2] North China Elect Power Univ, Beijing Key Lab Pass Safety Technol Nucl Energy, Beijing 102206, Peoples R China
[3] Box78,2 Beinong Rd, Beijing 102206, Peoples R China
来源：
ANNALS OF NUCLEAR ENERGY | 2023年 / 192卷
关键词：
Bowing fuel assembly; Thermal-hydraulic; CFD; Sub-channel; FAST-REACTOR; ROD BUNDLE; DEFORMATION; FLOW;
D O I：
10.1016/j.anucene.2023.110000
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：
To investigate the effect of fuel assembly bowing on coolant flow and heat transfer, three-dimensional thermal-hydraulic characteristics of 5x5 bowing fuel assembly are investigated using CFD simulation. The effects of different bowing sizes (1 mm and 2 mm) on the coolant thermal-hydraulic characteristics under three patterns of bowing shapes (C-shape, S-shape, and W-shape) of fuel assembly are revealed. The results show that in case 6 bowing of the fuel assembly reduces the average coolant outlet temperature by 0.37 k. Compared with normal conditions, the pressure, velocity, and temperature of the corner channel and the side channel are more affected by bowing than the middle channel. The research has reference value for fuel assembly design.
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页数：15
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