摘要
针对带有浸没喷射装置的液氢ZBO储箱,建立了二维轴对称CFD模型,预测了储箱内温度场分布,并分析了喷射装置尺寸参数对温度场的影响。计算结果表明:喷头的最佳位置位于储箱的中部,这样可以更好地通过降低液体最高温度来减小内部蒸发;喷头翼展长度增大,喷孔的总开口面积增大,同时喷射速度会降低,会导致最高温度和平均温度值有轻微的升高,翼展长度应设置在一定范围内。
For liquid hydrogen ZBO storage tank with injection nozzles to establish a two-dimensional axisymmetric CFD model, this model numerical prediction of the temperature field of the storage tank on the temperature field distribution and injection equipment size parameters. The results show that ： the best position of the nozzle should be located in the middle of the tank, so as to better reduce the maximum temperature of the liquid to reduce the internal evaporation ; the span of nozzle increases, the total opening area of the nozzle increases, but the jet the speed will be reduced, will result in maximum tem- perature and average temperature slightly increased span length should be set in a certain range.
出处
《真空与低温》
2013年第1期19-23,共5页
Vacuum and Cryogenics
关键词
浸没喷射
ZBO
最高温度值
数值模拟
Injection nozzles
Zero boil-off
Maximum temperature
Numerical simulation
