同位素2023，Vol.36Issue(6)：605-611,7.DOI:10.7538/tws.2023.youxian.016
数值模拟激光辅助凝聚抑制同位素分离中喷嘴构型对超声速射流的影响
Numerical Simulation of the Effect of Nozzle Structure on the Supersonic Jet Flow of Condensation Repression by Isotope Selective Laser Activation
摘要
Abstract
Condensation repression by isotope selective laser activation(CRISLA)is a promising laser isotope separation(LIS)method,which has the ability to separate a wide range of isotopes.The flow field within the separation device has an impact on the separation performance.The flow in the separation device under different conditions was modelled and simulated by computational fluid dynamics software.Based on the simula-tion results,the effect of nozzle structure on the flow was analysed.The results showed that the throat diameter is the most important nozzle structure factor affecting the temperature of the flow,and the length of the nozzle expansion section affected the temperature of the flow more significantly in the nozzles with a throat diameter of 3 mm or less;For nozzles with a throat diameter of 3-5 mm,the low-temperature region of the supersonic flow is easily formed outside the nozzle,for nozzles with a throat diameter of 2 mm or less,it is necessary to optimize the length and angle of the nozzle expansion section to obtain an ideal flow field.Finally,the article provides several nozzles that can form ideal flow fields,providing some reference for future experimental researches.关键词
激光同位素分离/数值模拟/超声速射流Key words
laser isotope separation/numerical simulation/supersonic jet flow分类
能源科技引用本文复制引用
马佳,马俊平,李业军..数值模拟激光辅助凝聚抑制同位素分离中喷嘴构型对超声速射流的影响[J].同位素,2023,36(6):605-611,7.基金项目
基础性军工科研院所稳定性支持(BJ19001810) （BJ19001810）
