跨音速湿空气非平衡凝结流动的数值研究

跨音速流动条件下湿空气中的水蒸气由于快速膨胀而发生非平衡凝结，凝结潜热对跨音速气流进行加热，会显著改变气流的流动特性。通过对商用计算流体动力学软件FLUENT进行二次开发，建立了湿空气非平衡凝结流动的数值求解方法。该方法可用于二维或三维、粘性或无粘、内流或外流的求解中。采用该方法分剐对缩放喷管、透平叶栅以及绕CA-0.1圆弧翼型的湿空气非平衡凝结流动进行了数值分析。计算结果表明：湿空气凝结手l起缩放喷管中的凝结激波、导致叶橱流动中总压降低；对于翼型周围的流动，在相对湿度分别为50％、57．1％、64.1％时，依次计算得到了单激波、五激波、双激波。

Numerical study on transonic flow of moist air with non-equilibrium condensation

In transonic flow rapid expansion of water vapor contained in moist air leads to non-equilibrium condensation.The addition of latent heat to moist air can obviously change the behavior of transonic flow.Based on the commercial computational fluid dynamics software FLUENT,a new algorithm is developed to simulate the moist air flow with non-equilibrium condensation.It can be used to solve two-dimensional or three dimensional,viscous or inviscid,internal or external flows.Numerical simulations are conducted to...