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从雷诺平均的非定常Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程出发，利用时间相关法，采用隐式的ＢｅａｍＷａｒｍｉｎｇ格式中的矢通量分裂技术，结合Ｂａｌｄｗｉｎ－Ｌｏｍａｘ代数湍流模型，数值模拟了收敛喷管的内流场和喷射流场。通过对超临界工况下喷管跨音速流场的数值计算，表明本文的结果与试验结果是吻合的。
Based on the Reynolds-averaged unsteady Navier-Stokes equations, the time-dependent method and the vector-flux splitting technique in the implicit BeamWarming scheme are used together with the Baldwin-Lomax algebraic turbulence model to numerically simulate the internal flow field and Jet flow field. By numerical calculation of the transonic flow field in the supercritical condition, the results in this paper are in good agreement with the experimental results.