板型元件表面结垢对堆芯最热通道流量分配影响的数值计算

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Numerical Simulation Analysis of the Effect of Crud on Flow-rate Distribution of Hot Channel in Plate-type Fuel Core

National Key Laboratory of Bubble Physics & Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 运用计算流体力学程序(CFX)对板型燃料元件表面结垢对堆芯最热通道流量分配的影响进行了数值计算分析。计算结果表明,最热通道由于两边燃料板结垢,在通道间隙宽度降低10%的情况下,最热通道的流量分配系数与未结垢时相比降低18.2%。
- 板型元件 /
- 结垢 /
- 流量分配 /
- CFX程序
Abstract: With CFX code, the effect of crud on flow-rate distribution of hot channel in plate-type core is analyzed. The research shows that the flow-rate distribution of hot channel is decreased by 18.2%, on account of the clearance decrease 10% due to crud on the surfaces of both hot channel fuel plates in plate-type fuel elements core.
- Plate-type fule /
- Crud /
- Flow-rate distribution /
- CFX code