论文信息 - Sounding propagation in multistage axial flow turbomachines

Sounding propagation in multistage axial flow turbomachines

A method is described for determining the sound propagation in multistage turbomachines. It is applicable to turbomachines which have nonuniform annular ducts carrying a mean flow with a swirling component. Comparison with measurements and the results from other theories show good compatibility. A computational study illustrates the influence of the swirling flow component and other parameters on the sound propagation. Further, numerical results are presented which indicate a strong acoustic coupling of the cascades.

K. E. Heinig

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