摘要
数值模拟了大型液氧贮箱停放阶段液氧与气枕区的热分层特征,根据模拟结果分析了液氧贮箱热分层厚度演化规律。结果表明:液氧的温度分层厚度随时间增长先增加后保持不变。外界环境温度的变化会在一定程度上影响着贮箱侧壁处的温度分布,但是对于其温度分层厚度并没有显著的影响。气枕区热分层现象比液氧区更加明显。
Thermal stratification characteristics of liquid oxygen and ullage area within large LOX tank were numerical simu- lated during the parking process. The evolution laws of thermal stratification thickness were analyzed according to the simulation results. It was found that variation of thermal stratification thickness of liquid oxygen with time was increasing in begin and then remained a constant value. The environmental temperature affected temperature distribution of the near wall,but it had no significant effect on thermal stratification thickness. Thermal stratification phenomenon in ullage was more obvious than liquid oxygen zone.
出处
《低温与超导》
CAS
北大核心
2015年第11期1-5,共5页
Cryogenics and Superconductivity
基金
上海航天基金(SAST201414)资助
关键词
大型液氧贮箱
停放阶段
热分层
Large LOX tank, Parking process, Thermal stratification
