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采用数值模拟方法研究了跨声速离心压气机进口导叶与叶轮的静/动叶排相互影响作用,研究包括三种几何间距模型及对同一间距模型使用了两种不同的转静子交界面位置设定.计算结果表明:交界面位置的设定对混合平面法定常计算性能会产生较大影响,对非定常性能影响很小;叶排间距大小对级性能影响几乎可以忽略,但间距减小会造成流场内压力波动增大;叶轮激波使叶轮对导叶流场的影响几倍甚至十几倍大于导叶对叶轮流场的影响,且激波的影响作用使导叶压力面、吸力面侧压力波动由不同的原因造成.
The numerical simulation method is used to study the interaction between the inlet guide vane and the impeller of the transonic centrifugal compressor. The study includes three geometric spacing models and two different positions of the translating stator interface for the same spacing model The calculation results show that the setting of the interface position has a great influence on the statistic regularity of the mixing plane and has little effect on the unsteady performance. The influence of the pitch of the blade row on the performance of the class is almost negligible, but the reduction of the spacing Causing the pressure fluctuation in the flow field to increase. The effect of the impeller shock wave on the flow field of the guide vane is several times or even ten times larger than that of the guide vane on the flow field of the impeller, and the influence of the shock wave makes the pressure surface, Surface pressure fluctuations caused by different reasons.