The flow fields in two annular turbine cajscades were tested in details. The results showthat the 3--Dimensional static pressure field in annular turbine cascade redistributes by usingthe curved blades, which causes t...The flow fields in two annular turbine cajscades were tested in details. The results showthat the 3--Dimensional static pressure field in annular turbine cascade redistributes by usingthe curved blades, which causes the blade curving effects and endwall vortex structures tobehave differently in the two endwall regions.展开更多
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...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.展开更多
文摘The flow fields in two annular turbine cajscades were tested in details. The results showthat the 3--Dimensional static pressure field in annular turbine cascade redistributes by usingthe curved blades, which causes the blade curving effects and endwall vortex structures tobehave differently in the two endwall regions.
文摘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.