原子能科学技术2012，Vol.46Issue(1)：73-78,6.
等速入口三喷口流动的温度振荡数值模拟
Numerical Investigation on Temperature Fluctuation in Triple-Jet Flow With Isovelocity Inlet Conditions
摘要
Abstract
The temperature fluctuation phenomenon caused by the mixed coolant flows out of the core with different temperatures in upper plenum, may not only interfere with the temperature measuring in the outlet of the core, but also cause thermal fatigue of the solid structure in upper plenum. In this paper, the three-dimensional triple-jet flow was simulated by the software FLUENT with large eddy simulation (LES). The numerical results are in good agreement with the experimental ones. The results show that the mixing of fluids becomes more and more intense with the inlet velocity increasing. The maximum amplitude of temperature fluctuation decreases obviously, while its corresponding frequency increases in the case.关键词
三喷口流动/冷热流体搅混/温度振荡/数值模拟Key words
triple-jet flow/mixing of hot and cold fluids/temperature fluctuation/numerical simulation分类
能源科技引用本文复制引用
曹琼,陆道纲,吕晶,李向宾..等速入口三喷口流动的温度振荡数值模拟[J].原子能科学技术,2012,46(1):73-78,6.基金项目
中央高校基本科研业务费专项资金资助项目(11QX50) （11QX50）
长江学者和创新团队发展计划资助项目(IRT0720) （IRT0720）
中央高校基本科研业务费资助项目(09QG12) （09QG12）
