液氮-水相变传热传质特性分析及数值模拟

Heat and mass transfer numerical simulation of phase transition between liquid nitrogen and water

研究低温液体水下直接排放的传热传质问题,分析在常压和超临界压力下,低温液体与水的传热传质过程特性,建立相应的数理模型,采用Fluent软件进行数值模拟,得出不同排放条件下低温液体的生存距离和温度场及浓度场。模型的计算结果可为低温液体排放装置的设计提供依据。

The process characteristics of heat and mass transfer between cryogenic liquid and water under normal and supereritieal pressure were described. The mathematic and physics models were established and simulated numerically with Fluent, the results showed the temperature field, mass field and the existing length of the cryogenic liquid under different conditions.