采用新型LU隐式格式和改良型高阶MUSCL TVD格式求解全三维雷诺平均的Navier-Stokes方程和q-低雷诺数双方程湍流模型，对一台NASA跨音单级透平在不同工况下的内部流场进行了详细的数值模拟，并与可能得到的实验结果进行了对比。总结了小流量工况下动叶内部流动的分离模式。
A new LU-type implicit scheme and an improvedhigh resolution MUSCL TVD scheme were used to solve the full three-dimensional Reynolds-averaged Navier-Stokes equations and the q-low-Reynolds-number two-equation turbulence model. The detail flow field in a NASA transonic single-stageturbine at different off-design working conditions was predicted by the present method.The computational results were compared with the available experimental data.The separation flow pattern in the rotor at low mass flow rate working condictions was concluded.
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