A comparative throughflow analysis of axial flow turbines

Abstract A throughflow analysis is performed for a single-stage axial flow turbine to demonstrate the predicted differences between the two-dimensional streamline curvature analysis and the mean line analysis. It is found that the streamline curvature analysis results in far better agreement with the experiment, which shows the importance of considering the spanwise variation of loss and flow. It is also revealed that the present streamline curvature analysis leads to better correspondence with the experiment than other authors’ analyses.