科技创新与应用2026，Vol.16Issue(14)：72-75,4.DOI:10.19981/j.CN23-1581/G3.2026.14.018
充压速率提升对钢制安全壳壳内气体流场的影响分析
摘要
Abstract
Aiming at the quantitative evaluation of the change in the gas flow field state in the steel containment caused by the increase in the charging rate in the overall test of steel containment,based on the computational fluid dynamics analysis method,a fluid simulation analysis model in the steel containment vessel was established,and the accuracy of the model was verified by using measured temperature data in the shell at low charging rate.Based on the verified model,the flow field state in the shell was simulated and analyzed when the charging rate was increased to 45 kPa/h.The results showed that after the charging rate was increased to 45 kPa/h,the average temperature of the gas in the containment shell increased by 3.5 益;During the charging process,the gas pressure in the shell was generally uniformly distributed,and the gas pressure gradient in the entire space did not exceed 1 kPa;the average velocity of the gas in the shell during the charging process was only 0.117 m/s.The quantitative indicators of the flow field state in the steel containment after the pressurization rate is increased provided by the research can provide reference for decision-making of nuclear power plants.关键词
钢制安全壳/整体性试验/充压速率/流场状态/计算流体动力学Key words
steel containment/integrity test/charging rate/flow field state/computational fluid dynamics分类
建筑与水利引用本文复制引用
曹舟,江宇,向华伟..充压速率提升对钢制安全壳壳内气体流场的影响分析[J].科技创新与应用,2026,16(14):72-75,4.基金项目
国家自然科学基金(52478323) （52478323）
