中文摘要：

本文研究了水蒸气超音速流动过程中的自发凝结现象。在欧拉坐标系下建立了二维可压缩守恒型数值计算模型,引入3系数维里型状态方程对水蒸气超音速凝结流动进行了数值模拟,依据Moore等提供的实验数据对缩放喷管算例进行了数值校验,验证了数值模型的可信度和准确性,在此基础上分析了水蒸气超音速凝结流动的特点和规律,揭示了水蒸气超音速流动过程中的自发凝结、液滴增长、凝结冲波等热力学现象的规律。

英文摘要：

The spontaneous condensation in supersonic steam flow was investigated.A conservation- typetwo-dimensional compressible numerical model was developed under Euler coordinate system. With this model in which the thermodynamic state and properties of steam was described by the Virial equation with three coefficients,the numerical simulation was performed to the supersonic steam flow with spontaneous condensation.Quantitative validation of the numerical model was accomplished using the experiment conducted by M...