| High performance turbomachinery is essential to advance the development of aeroengine and industry gas turbine. In order to clarify its problems and trends, some main aspects of full three-dimensional blading techniques were presented, including cascade elements, spanwise stacking, endwall treatment, detail design and global view point, etc. An important research direction was pointed out, which integrates the research results in subsonic cascade with high turning angle, supersonic cascade with limited separation, reduced shock cascade, spanwise stacking with sweep and bow, blended blade and endwall, and detailed design with adjoint optimization, and again combined with techniques derived from global viewpoint about unsteady three-dimensional turbomachinery flow. In order to seek good control, full three-dimensional streamline curvature would be the focus of blade design in the future. |