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In order to investigate the influence of the blade curving on the high diameter-length ratio annular cascade aerodynamic performance, three kinds of cascade outlet flow fields were measured in detail. The results show that using curved blade is an effective way to reduce secondary losses.In addition,the effect of the guide vanes behind the test cascades was also discussed.
In order to investigate the influence of the blade curving on the high diameter-length ratio annular cascade aerodynamic performance, three kinds of cascade outlet flow fields were measured in detail. The results show that using curved blade is an effective way to reduce secondary losses. In addition, the effect of the guide vanes behind the test cascades was also discussed.