原子能科学技术2016，Vol.50Issue(12)：2175-2180,6.DOI:10.7538/yzk.2016.50.12.2175
类四边形堆芯子通道内超临界水传热特性研究
Heat Transfer Characteristic of Supercritical Pressure Water Flowing in Square Sub-channel of Reactor
摘要
Abstract
A physical model was built in this study to numerically investigate the heat transfer characteristics of supercritical pressure water within a square sub‐channel by using the SSG Reynolds stress model .The corresponding fuel rod diameter was 8 mm and the pitch‐to‐diameter ratio was 1.2 respectively . The effects of pressure ,mass velocity and heat flux on the heat transfer characteristics were analyzed in detail .It is found that the numerical results of the wall temperature trend are consistent with the experiment results .The peak of heat transfer coefficient decreases with the increase of pressure in the pseudo‐critical region . The increase of mass velocity can significantly enhance the heat transfer in sub‐channel in a wide enthalpy region .With the increase of heat flux ,the wall temperature increases and the peak value of heat transfer coefficient decreases ,gradually moving towards low enthalpy region at the same time .关键词
超临界水冷反应堆/类四边形子通道/超临界水/传热/数值研究Key words
supercritical water-cooled reactor/square sub-channel/supercritical pres-sure water/heat transfer/numerical simulation分类
能源科技引用本文复制引用
王为术,崔强,赵鹏飞,陈刚,毕勤成..类四边形堆芯子通道内超临界水传热特性研究[J].原子能科学技术,2016,50(12):2175-2180,6.基金项目
国家自然科学基金资助项目（51406026）；河南省高校科技创新团队支持计划资助项目（16IRTSTHN017）；河南省科技创新人才计划资助项目 （）
