This paper deals with experimental and numerical computation analysis of the critical heat flux (CHF) occurrence at the conditions of subcooled boiling flow in rod bundles with grid spacers.

• 本文采用实验和数值计算分析相结合的方法,研究了带定位格架棒束通道内过冷流动沸腾工况下临界热流密度(CHF)发生情况。